Improving the Phase Modulating Properties of Electrically Addressed Liquid Crystal on Silicon Devices PDF Download
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Author: Yong Min Lee
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Yong Min Lee
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Andrés Márquez
Publisher: MDPI
ISBN: 303921828X
Category : Science
Languages : en
Pages : 172
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Book Description
Liquid Crystal on Silicon (LCoS) has become one of the most widespread technologies for spatial light modulation in optics and photonics applications. These reflective microdisplays are composed of a high-performance silicon complementary metal oxide semiconductor (CMOS) backplane, which controls the light-modulating properties of the liquid crystal layer. State-of-the-art LCoS microdisplays may exhibit a very small pixel pitch (below 4 μm), a very large number of pixels (resolutions larger than 4K), and high fill factors (larger than 90%). They modulate illumination sources covering the UV, visible, and far IR. LCoS are used not only as displays but also as polarization, amplitude, and phase-only spatial light modulators, where they achieve full phase modulation. Due to their excellent modulating properties and high degree of flexibility, they are found in all sorts of spatial light modulation applications, such as in LCOS-based display systems for augmented and virtual reality, true holographic displays, digital holography, diffractive optical elements, superresolution optical systems, beam-steering devices, holographic optical traps, and quantum optical computing. In order to fulfil the requirements in this extensive range of applications, specific models and characterization techniques are proposed. These devices may exhibit a number of degradation effects such as interpixel cross-talk and fringing field, and time flicker, which may also depend on the analog or digital backplane of the corresponding LCoS device. The use of appropriate characterization and compensation techniques is then necessary.
Author: Andrés Márquez
Publisher:
ISBN: 9783039218295
Category : Engineering (General). Civil engineering (General)
Languages : en
Pages : 172
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Book Description
Liquid Crystal on Silicon (LCoS) has become one of the most widespread technologies for spatial light modulation in optics and photonics applications. These reflective microdisplays are composed of a high-performance silicon complementary metal oxide semiconductor (CMOS) backplane, which controls the light-modulating properties of the liquid crystal layer. State-of-the-art LCoS microdisplays may exhibit a very small pixel pitch (below 4 ?m), a very large number of pixels (resolutions larger than 4K), and high fill factors (larger than 90%). They modulate illumination sources covering the UV, visible, and far IR. LCoS are used not only as displays but also as polarization, amplitude, and phase-only spatial light modulators, where they achieve full phase modulation. Due to their excellent modulating properties and high degree of flexibility, they are found in all sorts of spatial light modulation applications, such as in LCOS-based display systems for augmented and virtual reality, true holographic displays, digital holography, diffractive optical elements, superresolution optical systems, beam-steering devices, holographic optical traps, and quantum optical computing. In order to fulfil the requirements in this extensive range of applications, specific models and characterization techniques are proposed. These devices may exhibit a number of degradation effects such as interpixel cross-talk and fringing field, and time flicker, which may also depend on the analog or digital backplane of the corresponding LCoS device. The use of appropriate characterization and compensation techniques is then necessary.
Author: David Armitage
Publisher: John Wiley & Sons
ISBN: 9780470057070
Category : Technology & Engineering
Languages : en
Pages : 396
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Book Description
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
Author: Y. Lee
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 692
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Author: Ernst Lueder
Publisher: Wiley-Blackwell
ISBN:
Category : Science
Languages : en
Pages : 376
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Book Description
The special feature of the book is the in depth treatment of both the electro-optic effects and the addressing schemes of liquid crystal displays elucidating their interdependence. After basic explanations readily understandable for students and stimulating for engineers, physicists and chemists, the reader is gradually led to the latest developments such as vertically aligned and mixed mode TN-displays, compensation foils, multiple line and low power addressing, transistor driven LCOS-devices with DRAM and SRAM addressing and TFT-addressing of transmissive displays with a 92% aperture ratio. The results are analytically derived and not merely stated to enhance insight and the capability to tailor displays to individual needs or to perform novel designs. Towards this aim the propagation of light with the help of Jones vectors, four different characterizations of the state of polarization and the operation as well as the passive and active matrix addressing of all LCDs, like nematic, polymer dispersed, guest host and bistable devices is explained. Besides the mainstream twisted and supertwisted nematic LCDs attention is drawn to bistable ferroelectric, chiral nematic and modified nematic LCDs as they are most promising for future portable low power systems. Tables on display formats and units for the measurement of displays finally render the book suitable as a reference for experts working in the field and as a textbook for universities or display courses. The forefront of research is reached by the treatment of plastic substrates, the replacement of vacuum processes by less expensive printing and low temperature fabrication of a-Si- and poly-Si-TFTS.
Author: Pankaj Kumar Choudhury
Publisher: BoD – Books on Demand
ISBN: 9535138715
Category : Science
Languages : en
Pages : 276
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Book Description
Liquid crystals exhibit amazingly interesting properties that make them indispensable for several technological applications. The book Liquid Crystals - Recent Advancements in Fundamental and Device Technologies is aimed to focus on various aspects of research and development that liquid crystal mediums have come across in recent years. This would be ranging from the physical and chemical properties to the important applications that the liquid crystals have in our everyday life. It is expected that the book will make the expert researchers to be abreast of recent research advancements, whereas the novice researchers will benefit from both the conceptual understanding and the recent developments in the area. Multitudes of research themes and directions pivoted to liquid crystals remain the essence, which the readers would get the glimpse of and move ahead for further investigations.
Author: Izabela Naydenova
Publisher: BoD – Books on Demand
ISBN: 9533077298
Category : Technology & Engineering
Languages : en
Pages : 392
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Book Description
Advanced Holography - Metrology and Imaging covers digital holographic microscopy and interferometry, including interferometry in the infra red. Other topics include synthetic imaging, the use of reflective spatial light modulators for writing dynamic holograms and image display using holographic screens. Holography is discussed as a vehicle for artistic expression and the use of software for the acquisition of skills in optics and holography is also presented. Each chapter provides a comprehensive introduction to a specific topic, with a survey of developments to date.
Author: Jie Sun
Publisher:
ISBN:
Category :
Languages : en
Pages : 74
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Book Description
Liquid crystal devices are attractive for many applications such as information displays, spatial light modulators and adaptive optics, because their optical properties are electrically tunable. However, response time of liquid crystal devices is a serious concern for many applications especially for those who require large phase modulation ([greater than or equal to] 2[pi]). This is because a thick LC layer is usually needed to achieve a large phase shift while the response time of a nematic LC is highly determined by the cell gap.
