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micro LED产业化提速 005

Micro LED产业化提速

中国电子报

作者：杨鹏岳

micro LED显示技术方兴未艾，成为各大LED显示企业青睐并布局的热门赛道。micro LED显示技术飞速发展，在2024年呈现出明显的产品形态和应用场景多元化的特点，而中国企业引领了这一新成果和新动向。成果遍及多元应用场景在刚刚结... 详细信息

micro LED显示技术方兴未艾，成为各大LED显示企业青睐并布局的热门赛道。micro LED显示技术飞速发展，在2024年呈现出明显的产品形态和应用场景多元化的特点，而中国企业引领了这一新成果和新动向。成果遍及多元应用场景在刚刚结束的北京InfoComm China展会上，micro LED?

关键词： LED 产业化 micro 显示屏超高清

micro LED透明显示加速走向大众 005

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Micro LED透明显示加速走向大众

中国电子报

作者：谷月王伟

编者按：自2024年以来，micro LED透明显示迅速走红。联想推出全球首款透明micro LED屏概念笔记本电脑Think Book，三星展出首款透明micro LED电视，利亚德发布平板电脑大小的透明micro LED屏幕…… micro LED透明显示是micro LED技术... 详细信息

编者按：自2024年以来，micro LED透明显示迅速走红。联想推出全球首款透明micro LED屏概念笔记本电脑Think Book，三星展出首款透明micro LED电视，利亚德发布平板电脑大小的透明micro LED屏幕…… micro LED透明显示是micro LED技术发展的创新之一，从一项充满科幻色彩的前?

关键词： LED micro

苹果智能手表相关项目搁浅 micro LED前景几何 D04

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苹果智能手表相关项目搁浅 Micro LED前景几何

中国经营报

作者：陈佳岚

一则苹果决定暂停其micro LED屏供应链项目的消息让市场对micro LED商用前景的顾虑被推到台前。近日有消息称，苹果暂停了智能手表micro LED屏的供应链项目，与此同时，相关供应商ams OSRAM（艾迈斯欧司朗）在其官网宣布，在获悉其micro... 详细信息

一则苹果决定暂停其micro LED屏供应链项目的消息让市场对micro LED商用前景的顾虑被推到台前。近日有消息称，苹果暂停了智能手表micro LED屏的供应链项目，与此同时，相关供应商ams OSRAM（艾迈斯欧司朗）在其官网宣布，在获悉其micro LED计划的一个基石项目意外取消后，决定

关键词：智能手表 LED micro

苹果暂停智能手表micro LED项目？产业商用或延缓 011

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苹果暂停智能手表Micro LED项目？产业商用或延缓

21世纪经济报道

作者：倪雨晴朱梓烨

近日有消息称，苹果决定暂停micro LED智能手表的开发项目。与之相应的，相关供应商ams OSRAM（艾迈斯欧司朗）在其官网宣布，在获悉其micro LED计划的一个基石项目意外取消后，决定重新评估该公司的micro LED战略。有观点认为这仅... 详细信息

近日有消息称，苹果决定暂停micro LED智能手表的开发项目。与之相应的，相关供应商ams OSRAM（艾迈斯欧司朗）在其官网宣布，在获悉其micro LED计划的一个基石项目意外取消后，决定重新评估该公司的micro LED战略。有观点认为这仅仅是苹果与艾迈斯欧司朗的合作取消，但也?

关键词： LED 智能手表 micro

苹果对micro LED态度开始动摇 005

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苹果对Micro LED态度开始动摇

中国电子报

作者：谷月

北京时间5月7日晚，苹果发布了首款搭载OLED屏幕的iPad。这是苹果第一次将iPad从Mini LED背光LCD切换至OLED，业内人士预计苹果对Mini LED屏幕的需求会大幅缩减。此外，苹果对micro LED的态度也开始犹豫…… 一重压力源于对手 2021年... 详细信息

北京时间5月7日晚，苹果发布了首款搭载OLED屏幕的iPad。这是苹果第一次将iPad从Mini LED背光LCD切换至OLED，业内人士预计苹果对Mini LED屏幕的需求会大幅缩减。此外，苹果对micro LED的态度也开始犹豫…… 一重压力源于对手 2021年4月，苹果12.9英寸的iPad Pro新品首次采用

关键词： LED micro

micro Model of Carbon Fiber/Cyanate Ester Composites and Analysis of Machining Damage Mechanism

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Chinese Journal of Mechanical Engineering 2019年第3期32卷 198-208页

作者： Haitao Liu Jie Lin Yazhou Sun Jinyang Zhang Center for Precision Engineering School of Mechanical EngineeringHarbin Institute of TechnologyHarbin 150001China Rainbow Drone Technology Co. LtdChina Academy of Aerospace AerodynamicsBeijing 100000China

Machining damage occurs on the surface of carbon fiber reinforced polymer (CFRP) composites during processing. In the current simulation model of CFRP, the initial defects on the carbon fiber and the periodic random distribution of the reinforcement phase in the matrix are not considered in detail, which makes the characteristics of the cutting model significantly different from the actual processing conditions. In this paper, a novel three-phase model of carbon fiber/cyanate ester composites is proposed to simulate the machining damage of the composites. The periodic random distribution of the carbon fiber reinforced phase in the matrix was realized using a double perturbation algorithm. To achieve the stochastic distribution of the strength of a single carbon fiber, a novel method that combines the Weibull intensity distribution theory with the Monte Carlo method is presented. The mechanical properties of the cyanate matrix were characterized by fitting the stress-strain curves, and the cohesive zone model was employed to simulate the interface. Based on the model, the machining damage mechanism of the composites was revealed using finite element simulations and by conducting a theoretical analysis. Furthermore, the milling surfaces of the composites were observed using a scanning electron microscope, to verify the accuracy of the simulation results. In this study, the simulations and theoretical analysis of the carbon fiber/cyanate ester composite processing were carried out based on a novel three-phase model, which revealed the material failure and machining damage mechanism more accurately.

关键词： Carbon fiber reinforced polymer composites micro simulation model Machining damage mechanism Milling and observation experiment Theoretical analysis

Comparative proteomes change and possible role in different pathways of micro RNA-21a-5p in a mouse model of spinal cord injury

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Neural Regeneration Research 2020年第6期15卷 1102-1110页

作者： Almaghalsa-Ziad Mohammed Hong-Xia Du Hong-Liang Song Wei-Ming Gong Bin Ning Tang-Hong Jia Department of Spinal Surgery Jinan Central Hospital Affiliated to Shandong University

Our previous study found that microRNA-21 a-5 p(miR-21 a-5 p)knockdown could improve the recovery of motor function after spinal cord injury in a mouse model,but the precise molecular mechanism remains poorly understood.In this study,a modified Allen's weight drop was used to establish a mouse model of spinal cord injury.A proteomics approach was used to understand the role of differential protein expression with miR-21 a-5 p knockdown,using a mouse model of spinal cord injury without gene knockout as a negative control group.We found that after introducing miR-21 a-5 p knockdown,proteins that played an essential role in the regulation of inflammatory processes,cell protection against oxidative stress,cell redox homeostasis,and cell maintenance were upregulated compared with the negative control group.Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis identified enriched pathways in both groups,such as the oxidative phosphorylation pathway,which is relevant to Parkinson's disease,Huntington's disease,Alzheimer's disease,and cardiac muscle contraction.We also found that miR-21 a-5 p could be a potential biomarker for amyotrophic lateral sclerosis,as miR-21 a-5 p becomes deregulated in this pathway.These results indicate successful detection of some important proteins that play potential roles in spinal cord injury.Elucidating the relationship between these proteins and the recovery of spinal cord injury will provide a reference for future research of spinal cord injury biomarkers.All experimental procedures and protocols were approved by the Experimental Animal Ethics Committee of Shandong University of China on March 5,2014.

关键词： bioinformatics biomarker inflammation micro RNA mitochondria mouse pathway analysis proteomics spinal cord injury stathmin

micro-seeding and soft template effects on the control of polymorph and morphology of HMX micro particles in solvent-antisolvent process

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Defence Technology（防务技术） 2017年第6期13卷 392-396页

作者： Sajjad Damiri Shahriar Namvar Hadi Panahi Department of Applied Chemistry Maleke-ashtar University of TechnologyShahin-shahrEsfahanIran

A seeding strategy was developed in the preparation of cyclotetramethylenetetranitramine(HMX)explosive micro-particles by solvent-antisolvent method, to control their polymorphs from dangerous gamma(y) type to the desired and standard beta(β) form with the size distribution of micro-seed in the antisolvent medium. All products were characterized by X-ray diffraction(XRD), scanning electron microscopy(SEM), and dynamic light scattering particle size analyzer. In the next step, the effective factors on the sizes and morphologies of micro-particles in the presence and absence of two soft templates of poly(ethylene glycol)-400(PEG-400) polymer and coconut fatty acid diethanolamide(lauramide) surfactant were investigated. The results of experiments showed that using of water-soluble PEG-400 in the low antisolvent temperatures leads to the production of very spherical particles. Also non-ionic surfactant of lauramide, direct the crystal growth to needle-like structures. The advantages of this method are its capability for the simple production of β-HMX micro-particles in the large scale production process, with the various crystal structures and particles size distributions.

关键词： micro seeding Polymorph HMX Explosive micro-particle Solvent-antisolvent process

micro powder injection molding——large scale production technology for micro-sized components

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Science China(Technological Sciences) 2008年第2期51卷 121-126页

作者： YIN HaiQing JIA ChengChang QU XuanHui Institute of Particle and Powder Metallurgy School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing 100083China

micro powder injection molding (μPIM),a miniaturized variant of powder injection molding,has advantages of shape complexity,applicability to many materials and good mechanical properties. Co-injection molding has been realized between met-als and ceramics on micro components,which become the first breakthrough within the PIM field. Combined with the prominent characteristics of high features/cost ratio,micro powder injection molding becomes a potential technique for large scale production of intricate and three-dimensional micro components or micro-structured components in microsystems technology (MST) field.

关键词： micro injection molding co-injection molding large scale production microsystems technology