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Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (145 download)
Download or read book Fabrication and Application of High Resolution 4096x2400 Pixels Array GaN-based Micro-Light Emitting Diode written by and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jong-Hyun Ahn
Publisher : Springer Nature
ISBN 13 : 9811655057
Total Pages : 161 pages
Book Rating : 4.8/5 (116 download)
Download or read book Micro Light Emitting Diode: Fabrication and Devices written by Jong-Hyun Ahn and published by Springer Nature. This book was released on 2022-01-04 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on basic fundamental and applied aspects of micro-LED, ranging from chip fabrication to transfer technology, panel integration, and various applications in fields ranging from optics to electronics to and biomedicine. The focus includes the most recent developments, including the uses in large large-area display, VR/AR display, and biomedical applications. The book is intended as a reference for advanced students and researchers with backgrounds in optoelectronics and display technology. Micro-LEDs are thin, light-emitting diodes, which have attracted considerable research interest in the last few years. They exhibit a set of exceptional properties and unique optical, electrical, and mechanical behaviors of fundamental interest, with the capability to support a range of important exciting applications that cannot be easily addressed with other technologies. The content is divided into two parts to make the book approachable to readers of various backgrounds and interests. The first provides a detailed description with fundamental materials and production approaches and assembly/manufacturing strategies designed to target readers who seek an understanding ofof essential materials and production approaches and assembly/manufacturing strategies designed to target readers who want to understand the foundational aspects. The second provides detailed, comprehensive coverage of the wide range of device applications that have been achieved. This second part targets readers who seek a detailed account of the various applications that are enabled by micro-LEDs.
Author :
Publisher : Academic Press
ISBN 13 : 0128230630
Total Pages : 412 pages
Book Rating : 4.1/5 (282 download)
Download or read book Micro LEDs written by and published by Academic Press. This book was released on 2021-06-04 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: MicroLEDs', Volume 106 is currently recognized as the ultimate display technology and one of the fastest-growing technologies in the world as technology giants utilize it on a wide-ranging set of products. This volume combines contributions from MicroLED pioneers and world's leading experts in the field who focus on the MicroLED development, current cutting-edge technologies of pursuing for realizing MicroLED large flat panel displays and televisions, virtual reality and 3D displays, light source for LI-FI data communications, neural interface and optogenetics, and future MicroLED technology trends. - Contains contributions from original MicroLED inventors and pioneers - Provides the most comprehensive and updated status of MicroLED technological advancements and applications - Updates on future MicroLED technology trends
Author : Tae-Yeon Seong
Publisher : Springer Science & Business Media
ISBN 13 : 9400758634
Total Pages : 434 pages
Book Rating : 4.4/5 (7 download)
Download or read book III-Nitride Based Light Emitting Diodes and Applications written by Tae-Yeon Seong and published by Springer Science & Business Media. This book was released on 2014-07-08 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Light emitting diodes (LEDs) are already used in traffic signals, signage lighting, and automotive applications. However, its ultimate goal is to replace traditional illumination through LED lamps since LED lighting significantly reduces energy consumption and cuts down on carbon-dioxide emission. Despite dramatic advances in LED technologies (e.g., growth, doping and processing technologies), however, there remain critical issues for further improvements yet to be achieved for the realization of solid-state lighting. This book aims to provide the readers with some contemporary LED issues, which have not been comprehensively discussed in the published books and, on which the performance of LEDs is seriously dependent. For example, most importantly, there must be a breakthrough in the growth of high-quality nitride semiconductor epitaxial layers with a low density of dislocations, in particular, in the growth of Al-rich and and In-rich GaN-based semiconductors. The materials quality is directly dependent on the substrates used, such as sapphire, Si, etc. In addition, efficiency droop, growth on different orientations and polarization are also important. Chip processing and packaging technologies are key issues. This book presents a comprehensive review of contemporary LED issues. Given the interest and importance of future research in nitride semiconducting materials and solid state lighting applications, the contents are very timely. The book is composed of chapters written by leading researchers in III-nitride semiconducting materials and device technology. This book will be of interest to scientists and engineers working on LEDs for lighting applications. Postgraduate researchers working on LEDs will also benefit from the issues this book provides.
Author : Jian-Jang Huang
Publisher : Woodhead Publishing
ISBN 13 : 0081019432
Total Pages : 826 pages
Book Rating : 4.0/5 (81 download)
Download or read book Nitride Semiconductor Light-Emitting Diodes (LEDs) written by Jian-Jang Huang and published by Woodhead Publishing. This book was released on 2017-10-24 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitride Semiconductor Light-Emitting Diodes (LEDs): Materials, Technologies, and Applications, Second Edition reviews the fabrication, performance and applications of the technology, encompassing the state-of-the-art material and device development, along with considerations regarding nitride-based LED design. This updated edition is based on the latest research and advances, including two new chapters on LEDs for large displays and laser lighting. Chapters cover molecular beam epitaxy (MBE) growth of nitride semiconductors, modern metalorganic chemical vapor deposition (MOCVD) techniques, the growth of nitride-based materials, and gallium nitride (GaN)-on-sapphire and GaN-on-silicon technologies for LEDs. Nanostructured, non-polar and semi-polar nitride-based LEDs, as well as phosphor-coated nitride LEDs, are also discussed. The book also addresses the performance of nitride LEDs, including photonic crystal LEDs, surface plasmon enhanced LEDs, color tuneable LEDs, and LEDs based on quantum wells and quantum dots. Further chapters discuss the development of LED encapsulation technology and fundamental efficiency droop issues in gallium indium nitride (GaInN) LEDs. It is a technical resource for academics, physicists, materials scientists, electrical engineers, and those working in the lighting, consumer electronics, automotive, aviation, and communications sectors. - Features new chapters on laser lighting, addressing the latest advances on this topic - Reviews fabrication, performance, and applications of this technology that encompass the state-of-the-art material and device development - Covers the performance of nitride LEDs, including photonic crystal LEDs, surface plasmon enhanced LEDs, color tuneable LEDs, and LEDs based on quantum wells and quantum dots - Highlights applications of nitride LEDs, including liquid crystal display (LCD) backlighting, infra-red emitters, and automotive lighting - Provides a comprehensive discussion of gallium nitride on both silicon and sapphire substrates
Author : Jinmin Li
Publisher : Springer Nature
ISBN 13 : 9811579490
Total Pages : 295 pages
Book Rating : 4.8/5 (115 download)
Download or read book III-Nitrides Light Emitting Diodes: Technology and Applications written by Jinmin Li and published by Springer Nature. This book was released on 2020-08-31 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides an overview of III-nitride-material-based light-emitting diode (LED) technology, from the basic material physics to the latest advances in the field, such as homoepitaxy and heteroepitaxy of the materials on different substrates. It also includes the latest advances in the field, such as approaches to improve quantum efficiency and reliability as well as novel structured LEDs. It explores the concept of material growth, chip structure, packaging, reliability and application of LEDs. With spectra coverage from ultraviolet (UV) to entire visible light wavelength, the III-nitride-material-based LEDs have a broad application potential, and are not just limited to illumination. These novel applications, such as health & medical, visible light communications, fishery and horticulture, are also discussed in the book.
Author : François Templier
Publisher : John Wiley & Sons
ISBN 13 : 1119015065
Total Pages : 311 pages
Book Rating : 4.1/5 (19 download)
Download or read book OLED Microdisplays written by François Templier and published by John Wiley & Sons. This book was released on 2014-08-08 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microdisplays are displays requiring optical magnification and OLEDs (Organic Light-Emitting Diode) are self-emitting displays where each pixel includes a LED made of organic material, in general composed of small-molecule organic material. This title reviews in detail how OLED microdisplays are made as well as how they are used. All aspects from theory to application will be addressed: basic principles, display design, display fabrication, operation and performances, present and future applications. The book will be useful to anyone interested in this rapidly developing field, such as students or researchers, industry professionals (engineers, project leaders) in the field of display development/fabrication and display end-users.
Author : Shengjun Zhou
Publisher :
ISBN 13 : 9789811904370
Total Pages : 0 pages
Book Rating : 4.9/5 (43 download)
Download or read book III-Nitride LEDs written by Shengjun Zhou and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights state-of-the-art in III-nitrides-based light-emitting diodes (LEDs). Motivated by the application prospects in lighting, high-resolution display, and health & medicine, the book systematically introduces the physical fundamentals, epitaxial growth, and device fabrications of III-nitride-based LEDs. Important topics including the structures of chips, device reliability and measurements and the advances in mini and micro LEDs are also discussed. The book is completed with a decade of research experience of the author's team in the design and fabrication of III-nitrides-based LEDs, presenting the novel achievements in the stress control of the large mismatch heterostructures, defect formation and inhibition mechanism of the heteroepitaxial growth, LED epitaxial technologies, and the fabrication of high-efficient flip-chip LEDs. The book comprises of a valuable reference source for researchers and professionals engaged in the research and development of III-nitrides-based LEDs.
Author :
Publisher : Academic Press
ISBN 13 : 0080864457
Total Pages : 489 pages
Book Rating : 4.0/5 (88 download)
Download or read book High Brightness Light Emitting Diodes written by and published by Academic Press. This book was released on 1998-02-09 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 48in the Semiconductors and Semimetals series discusses the physics and chemistry of electronic materials, a subject of growing practical importance in the semiconductor devices industry. The contributors discuss the current state of knowledge and provide insight into future developments of this important field.
Author : Robert F Davis
Publisher : World Scientific
ISBN 13 : 9814482692
Total Pages : 295 pages
Book Rating : 4.8/5 (144 download)
Download or read book Gan-based Materials And Devices: Growth, Fabrication, Characterization And Performance written by Robert F Davis and published by World Scientific. This book was released on 2004-05-07 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: The unique materials properties of GaN-based semiconductors have stimulated a great deal of interest in research and development regarding nitride materials growth and optoelectronic and nitride-based electronic devices. High electron mobility and saturation velocity, high sheet carrier concentration at heterojunction interfaces, high breakdown field, and low thermal impedance of GaN-based films grown over SiC or bulk AlN substrates make nitride-based electronic devices very promising. The chemical inertness of nitrides is another key property.This volume, written by experts on different aspects of nitride technology, addresses the entire spectrum of issues related to nitride materials and devices, and it will be useful for technologists, scientists, engineers, and graduate students who are working on wide bandgap materials and devices. The book can also be used as a supplementary text for graduate courses on wide bandgap semiconductor technology.
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (145 download)
Download or read book Fabrication of 3200 PPI High-Resolution AlGaInP-Based Micro-LED Display written by and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jagannathan Thirumalai
Publisher : BoD – Books on Demand
ISBN 13 : 1789237505
Total Pages : 170 pages
Book Rating : 4.7/5 (892 download)
Download or read book Light-Emitting Diode written by Jagannathan Thirumalai and published by BoD – Books on Demand. This book was released on 2018-09-19 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: The broad vision of this book is to offer book lovers a comprehensive appraisal of topics in the global advancements of experimental facts, instrumentation, and practical applications of LED and OLED materials and their applications. The prime feature of this book is connected with LED and OLED materials approaches of fabrication, optimization limits, and their extensive technical applications. This book is comprised of seven chapters encompassing the importance of LEDs and OLEDs, the history of LEDs and OLEDs with necessary examples, the phototoxic-cum-bactericidal effect due to the usage of blue LED irradiation, DC network indoor and outdoor LED lighting, WLEDs with thermally activated delayed fluorescence emitters, tetradentate cyclometalated platinum (II) complex-based efficient organic LEDs, the impact of the use of large LED lighting loads in low-voltage networks, highly efficient OLEDs using thermally activated delayed fluorescent materials, and AlGaN deep ultraviolet LEDs. Individual chapters provide a base for the wide range of common bibliophiles in diversified fields, students, and researchers, who may conduct research pertinent to this book and will find simply explained basics as well as advanced principles of designated subjects related to these phenomena. The book was created from seven contributions from experts in the diversified fields of LED and OLED fabrication and technology from over 15 research institutes across the globe.
Author : Wengang (Wayne) Bi
Publisher : CRC Press
ISBN 13 : 1498747140
Total Pages : 709 pages
Book Rating : 4.4/5 (987 download)
Download or read book Handbook of GaN Semiconductor Materials and Devices written by Wengang (Wayne) Bi and published by CRC Press. This book was released on 2017-10-20 with total page 709 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses material growth, device fabrication, device application, and commercialization of energy-efficient white light-emitting diodes (LEDs), laser diodes, and power electronics devices. It begins with an overview on basics of semiconductor materials, physics, growth and characterization techniques, followed by detailed discussion of advantages, drawbacks, design issues, processing, applications, and key challenges for state of the art GaN-based devices. It includes state of the art material synthesis techniques with an overview on growth technologies for emerging bulk or free standing GaN and AlN substrates and their applications in electronics, detection, sensing, optoelectronics and photonics. Wengang (Wayne) Bi is Distinguished Chair Professor and Associate Dean in the College of Information and Electrical Engineering at Hebei University of Technology in Tianjin, China. Hao-chung (Henry) Kuo is Distinguished Professor and Associate Director of the Photonics Center at National Chiao-Tung University, Hsin-Tsu, Taiwan, China. Pei-Cheng Ku is an associate professor in the Department of Electrical Engineering & Computer Science at the University of Michigan, Ann Arbor, USA. Bo Shen is the Cheung Kong Professor at Peking University in China.
Author : Shuming Chen
Publisher : Bentham Science Publishers
ISBN 13 : 1681081202
Total Pages : 211 pages
Book Rating : 4.6/5 (81 download)
Download or read book Active-Matrix Organic Light- Emitting Display Technologies written by Shuming Chen and published by Bentham Science Publishers. This book was released on 2015-10-14 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: Frontiers in Electrical Engineering is a book series dedicated to publishing current research in the field of electrical engineering and electronics. The vast amount of publications concerning these fields are summarized in each series volumes with a key focus on device structures and fabrication techniques that are pertinent to the practical production processes and electronic applications. This volume presents an introduction to the subject of Active-Matrix Organic Light-Emitting Display (AMOLED) technology. AMOLEDs are generally integrated into electronic applications and production processes, including understanding basic optical LED (OLED) working principles and the fabrication and characterization of electronic and semiconductor devices. Other applications of AMOLEDs include white OLEDs, light outcoupling, encapsulation, thin film transistor backplanes, driving schemes, and circuit and layout design technologies. This volume will be helpful to novice scientists and engineers working on the development of practical OLED display and OLED lighting technology. Researchers studying organic electronics and advanced undergraduate and graduate students and professionals involved in the OLED industry will also benefit from the information given in this monograph.
Author : Cong Feng
Publisher :
ISBN 13 : 9781361042038
Total Pages : pages
Book Rating : 4.0/5 (42 download)
Download or read book Phosphor-Free Polychromatic Emission Ingan Light-Emitting Diode written by Cong Feng and published by . This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Phosphor-free Polychromatic Emission InGaN Light-emitting Diode" by Cong, Feng, 冯聪, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Broadband white light is indispensable for applications involving general illumination and displaying, a task conventionally fulfilled by fluorescent light sources. Light-emitting diodes (LEDs) based on the Group-III nitrides have been taking over that role in recent years, despite the fact that LEDs are inherently monochromatic sources with spectral line-widths in the range of 20 to 50nm. The most adopted industrial solution is to shift part of the light emitted by a blue InGaN chip into longer wavelength, using color converters such as phosphors. To achieve a white light, the Stokes shift is usually above 100nm. The tradeoff is a dramatic energy loss during the color-conversion process. Also, the relatively shorter lifetimes of phosphors compared to that of the LED chips reduces chromatic reliability of such devices. Researches have long been working for a phosphor-free white LED. It is known that c-plane grown InGaN multi-quantum wells (MQWs) experience high strain due to the lattice mismatch between the wells and the barriers. The strain-induced piezoelectric field narrows the effective energy band gap and lead to a red shift of the emission, known as the quantum-confined Stark effect (QCSE). It has been shown that the QCSE can be partially eliminated by releasing the strain via nanoscale structures such as nanopillars. Studies on the strain-relax effect of nanopillars have shown a blue shift of 70-200 meV, depending on the size of the pillars. 200 meV corresponds to about 50nm in wavelength in the visible band, which may provide another color-converting solution for white lighting if further enhanced. Nanosphere lithography (NSL) uses nanospheres as the lithography mask. It has been widely studied and applied in recent years since it offers ordered nanopatterns in a simple and low-cost way. The key process of NSL is the formation of the mask from spheres that are initially in colloidal form. This mainly takes use of the self-assembly phenomenon during the evaporation of the dispersant solvent, attributed to the attractive capillary forces. Till now, based on the self-assembly process, nanopatterns with sub-100nm feature size have been achieved. By taking advantage of NSL, a phosphor-free polychromatic LED structure comprising a combination of high-density microstructured and nanostructured InGaN MQWs is proposed and demonstrated. Polychromatic emission is realized by taking advantage of the low-dimensional-induced strain-relax effect, combining light emitted from strain-relaxed nanotips at wavelengths shorter than the as-grown by as much as 80 nm with longer-wavelength light emitted from the larger unscathed microdisks. The localized emission characteristics have been characterized by spatially-resolved near-field photoluminescence (nf-PL) spectroscopy which allows both the photoluminescence (PL) signal and spectrum from individual nanotips to be optically-resolved and distinguished from emission at the larger-dimensioned regions. The far-field optical properties are evaluated through electroluminescent (EL) spectroscopy, from which an EL spectra containing two peaks of 80nm difference in wavelength can be achieved by fabricating the micro/nano structures on high In content InGaN MQWs that emit at center wavelengths of 575 nm. The continuous broadband spectrum is characterized by International Commission on Illumination (Commission internationale de l''eclairage, CIE) coordinates o
Author : E. Fred Schubert
Publisher : Society of Photo Optical
ISBN 13 : 9780819430915
Total Pages : 260 pages
Book Rating : 4.4/5 (39 download)
Download or read book Light-emitting Diodes written by E. Fred Schubert and published by Society of Photo Optical. This book was released on 1999-01-01 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David Armitage
Publisher : John Wiley & Sons
ISBN 13 : 9780470057070
Total Pages : 396 pages
Book Rating : 4.0/5 (57 download)
Download or read book Introduction to Microdisplays written by David Armitage and published by John Wiley & Sons. This book was released on 2006-11-02 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microdisplays are tiny, high-resolution electronic displays, designed for use in magnifying optical systems such as HDTV projectors and near-eye personal viewers. As a result of research and development into this field, Microdisplays are incorporated in a variety of visual electronics, notably new 3G portable communications devices, digital camera technologies, wireless internet applications, portable DVD viewers and wearable PCs. Introduction to Microdisplays encapsulates this market through describing in detail the theory, structure, fabrication and applications of Microdisplays. In particular this book: Provides excellent reference material for the Microdisplay industry through including an overview of current applications alongside a guide to future developments in the field Covers all current technologies and devices such as Silicon Wafer Backplane Technology, Liquid Crystal Devices, Micromechanical Devices, and the emerging area of Organic Light Emitting Diodes Presents guidance on the design of applications of Microdisplays, including Microdisplays for defence and telecoms, from basic principles through to their performance limitations Introduction to Microdisplays is a thorough and comprehensive reference on this emerging topic. It is essential reading for display technology manufacturers, developers, and system integrators, as well as practising electrical engineers, physicists, chemists and specialists in the display field. Graduate students, researchers, and developers working in optics, material science, and telecommunications will also find this a valuable resource. The Society for Information Display (SID) is an international society, which has the aim of encouraging the development of all aspects of the field of information display. Complementary to the aims of the society, the Wiley-SID series is intended to explain the latest developments in information display technology at a professional level. The broad scope of the series addresses all facets of information displays from technical aspects through systems and prototypes to standards and ergonomics
