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Author: Hin Yu Mak
Publisher:
ISBN:
Category : Liquid crystal displays
Languages : en
Pages : 224
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Book Description
Author: Hin Yu Mak
Publisher:
ISBN:
Category : Liquid crystal displays
Languages : en
Pages : 224
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Book Description
Author: Zhibing Ge
Publisher: John Wiley & Sons
ISBN: 9780470689066
Category : Technology & Engineering
Languages : en
Pages : 246
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Book Description
Sunlight readable transflective liquid crystal displays, used on devices from cell phones and portable media players, to GPS and even some desktop monitors, have become indispensable in our day-to-day lives. Transflective Liquid Crystal Displays is a methodical examination of this display technology, providing a useful reference to the fundamentals of the topic. Including thorough descriptions of the essential physics of transflective LCD technologies, the book also compares transflective LCD technology with alternatives, such as OLED displays, to enable display engineers to appropriately select the correct device for their particular application. Includes detailed descriptions of both pure transmissive and reflective LCDs, and the design considerations and performance of combining these into small mobile displays. Focuses on fundamental elements, such as double cell gap transflective LCDs, wide-viewing angle technology, light polarization and wide-view linear and circular polarizers, video rate display by colour sequential technologies, colour sciences and engineering, and backlights. Describes the latest LCD technologies, such as polymer-sustained surface alignment technology, and the possible trends which could be applied to transflective LCDs in the future. Its focus on the fundamentals of transflective liquid crystal displays makes this an ideal graduate text, while display engineers, scientists, developers and technicians working with this technology will also welcome this 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: Ernst Lueder
Publisher: John Wiley & Sons
ISBN: 1119667917
Category : Technology & Engineering
Languages : en
Pages : 644
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Book Description
LIQUID CRYSTAL DISPLAYS THE NEW EDITION OF THE GOLD-STANDARD IN TEACHING AND REFERENCING THE FUNDAMENTALS OF LCD TECHNOLOGIES This book presents an up-to-date view of modern LCD technology. Offering balanced coverage of all major aspects of the field, this comprehensive volume provides the theoretical and practical information required for the development and manufacture of high-performance, energy-efficient LCDs. The third edition incorporates new technologies and applications throughout. Several brand-new chapters discuss topics such as the application of Oxide TFTs and high mobility circuits, high-mobility TFT-semiconductors in LCD addressing, liquid crystal displays in automotive instrument clusters and touch-screen systems, and the use of ultra-high-resolution LCD panels in augmented reality (AR) and virtual reality (VR) displays. This practical reference and guide: Provides a complete account of commercially relevant LCD technologies, including their physics, mathematical descriptions, and electronic addressing Features extensively revised and expanded information, including more than 150 pages of new material Includes the addition of Oxide Transistors and their increased mobilities, the advances of fringe field switching and an overview of automotive displays Presents quantitative results with full equation sets, their derivation, and tabular summaries of related information sets
Author: Fushan Zhou
Publisher:
ISBN:
Category : Liquid crystal displays
Languages : en
Pages : 486
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Book Description
Author: Pochi Yeh
Publisher: John Wiley & Sons
ISBN: 0470181761
Category : Science
Languages : en
Pages : 787
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Book Description
NOW UPDATED—THE HIGHLY PRACTICAL GUIDE TO ANALYZING LIQUID CRYSTAL DISPLAYS The subject of liquid crystal displays has vigorously evolved into an exciting interdisciplinary field of research and development, involving optics, materials, and electronics. Updated to reflect recent advances, the Second Edition of Optics of Liquid Crystal Displays now offers a broader, more comprehensive discussion on the fundamentals of display systems and teaches readers how to analyze and design new components and subsystems for LCDs. New features of this edition include: Discussion of the dynamics of molecular reorientation Expanded information of the method of Poincaré sphere in various optical components, including achromatic wave plates and compensators Neutral and negative Biaxial thin films for compensators Circular polarizers and anti-reflection coatings The introduction of wide field-of-view wave plates and filters Comprehensive coverage of VA-LCD and IPS-LCD Additional numerical examples This updated edition is intended as a textbook for students in electrical engineering and applied physics, as well as a reference book for engineers and scientists working in the area of research and development of display technologies.
Author: Shin-Tson Wu
Publisher: John Wiley & Sons
ISBN: 0471496111
Category : Technology & Engineering
Languages : en
Pages : 354
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Book Description
The evolution of portable communications applications has been facilitated largely by the development of reflective LCD technology. Offering a unique insight into state-of-the art display technologies, Reflective Liquid Crystal Displays covers the basic operations principles, exemplary device structures and fundamental material properties of device components. Display engineers, scientists and technicians active in the field will welcome this unique resource, as will developers of a wide range of systems and applicaations. Graduate students and researchers will appreciated the introduction and technical insight into this exciting technology. Featuring: * Direct-view, projection and micro (virtual projection) reflective displays in the context of multi-media projectors, mobile internet and personal entertainment displays. * Optimisation of critical display attributes: fast response time, low voltage operation and wide angle viewing. * Description of the basic properties of liquid crystal materials and their incorporation into configurations for transmissive and reflective applications. * Examination of the various operations modes enabling the reader to slect the appropriate display type to meet a variety of needs. * Overview and comparison of the complete range of reflective display technologies, and reflective LCD effects. 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: Birendra Bahadur
Publisher: CRC Press
ISBN: 9780677066752
Category : Science
Languages : en
Pages : 104
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Book Description
Author: Shoichi Ishihara
Publisher: Institution of Engineering and Technology
ISBN: 178561925X
Category : Technology & Engineering
Languages : en
Pages : 417
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Book Description
This book celebrates 50 years since liquid crystal display (LCD) technologies were first demonstrated. LCDs have grown in that short time from a laboratory curiosity to a US$100 billion industry and are now indispensable in our daily life and careers - an impressive example of successful innovation and commercialisation. The shifting focus of research follows a pattern of improved definition, increased display size, wider viewing angles and faster responses, with improvements in each area influencing the next. There is also growing interest in the use of liquid crystal materials in novel applications including sensing devices, spatial modulators, light-shielding windows, and flexible and wearable technologies. This book discusses the latest LCD technologies, with their challenges, opportunities, and problems to be solved, at a level suited to an academic and research-professional audience. There is a particular focus on display quality such as image sticking, contrast ratio and colour hue that has not been dealt with thoroughly elsewhere. Current and future trends in liquid crystal materials and technologies based on their evolving role and new applications are discussed in detail. This volume provides a review of the development of the technology and details display applications and technical aspects of key components.
Author: Meizi Jiao
Publisher:
ISBN:
Category : Liquid crystal displays
Languages : en
Pages : 122
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Book Description
After about five decades of extensive material research and device development, followed by massive investment in manufacturing technology, thin-film-transistor liquid-crystal-display (TFT-LCD) has finally become the dominant flat panel display technology. Nowadays, LCD performances, such as viewing angle, contrast ratio, and resolution, have reached acceptable levels. The remaining major technical challenges are response time, light efficiency, and sunlight readability. Fast response time is desired to reduce motion blur and to enable field sequential color displays using red (R), green (G), and blue (B) LEDs (light emitting diodes) without noticeable color breakup. Sequential RGB colors would eliminate the commonly used spatial color filters which in turn enhances light efficiency and resolution density by ~ 3X. In this dissertation, several new approaches for achieving fast-response LCDs are explored. From material viewpoint, the most straightforward approach for achieving fast response time is to employ a thin cell gap with high birefringence and low viscosity liquid crystal (LC). We investigated the thin cell approach theoretically and experimentally. Voltage shielding effect and anchoring energy effect of alignment layers are found to play important roles on operating voltage and response time. Simulations are carried out to understand the underlying physics and confirm the experimental results quantitatively. Another approach to realize fast response time is to explore novel device configuration. Here, we proposed a dual fringing-field switching (DFFS) mode in which small LC domains are formed following the distribution of fringing fields. Therefore, it exhibits submillisecond response time without using thin cell or overdrive/undershoot voltage method. The response time of the DFFS mode is ~20X faster than a conventional vertical aligned LCD. In addition, high optical efficiency is achieved from the complementary top and bottom active LC domains. Two transmissive and one transflective LCDs using DFFS mode are conceived and their electro-optical properties investigated. A shortcoming of DFFS LCDs is their fabrication complexity. To keep the advantages of this fast-response mode while avoiding the requirement of double-TFTs and pixel registration, we modified the device structure to transflective LCD which uses a single TFT in each pixel and vertical aligned positive dielectric anisotropy LC. Two types of electrodes are considered: fringing-field switching (FFS) and in-plane switching (IPS). Besides fast response time and high transmittance, such a transflective LCD shows good sunlight readability. As nematic LC is gradually approaching to its limit in term of response time, polymer-stabilized blue phase (PSBP) LCD is emerging. It has potential to become next-generation display because of following revolutionary features: submillisecond response time, no need for alignment layer, good dark state and symmetric viewing angle, and cell gap insensitivity if IPS electrode is employed. In this dissertation, we studied the material-property correlation of Kerr effect-induced birefringence in nano-structured PSBP LC composites. Furthermore, a new device configuration of BP LCD with corrugated electrodes is proposed to solve two critical technical issues: high driving voltage and relatively low transmittance. The on-state voltage can be reduced from ~35 V[subscript rms] to ~10 V[subscript rms] which will enable TFT addressing, and the transmittance is improved from ~65% to ~85%. This new device configuration will accelerate the emergence of PSBP LCD. Wide view is another important requirement for a high-end display. Several new LCD configurations with negative A-plate and biaxial plate as phase compensation films are proposed to achieve wide view and broadband operation. The underlying working principles are studied and detailed display performances are included in this dissertation.
Author: Deng-Ke Yang
Publisher: John Wiley & Sons
ISBN: 1118752007
Category : Technology & Engineering
Languages : en
Pages : 588
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Book Description
Liquid Crystal Devices are crucial and ubiquitous components of an ever-increasing number of technologies. They are used in everything from cellular phones, eBook readers, GPS devices, computer monitors and automotive displays to projectors and TVs, to name but a few. This second edition continues to serve as an introductory guide to the fundamental properties of liquid crystals and their technical application, while explicating the recent advancements within LCD technology. This edition includes important new chapters on blue-phase display technology, advancements in LCD research significantly contributed to by the authors themselves. This title is of particular interest to engineers and researchers involved in display technology and graduate students involved in display technology research. Key features: Updated throughout to reflect the latest technical state-of-the-art in LCD research and development, including new chapters and material on topics such as the properties of blue-phase liquid crystal displays and 3D liquid crystal displays; Explains the link between the fundamental scientific principles behind liquid crystal technology and their application to photonic devices and displays, providing a thorough understanding of the physics, optics, electro-optics and material aspects of Liquid Crystal Devices; Revised material reflecting developments in LCD technology, including updates on optical modelling methods, transmissive LCDs and tunable liquid crystal photonic devices; Chapters conclude with detailed homework problems to further cement an understanding of the topic.
