Liquid Crystals And Display Technology

Liquid crystals have attracted scientific attention for potential applications in advanced devices. Display technology is continuously growing and expanding and, as such, this book provides an overview of the most recent advances in liquid crystals and displays. Chapters cover such topics as nematic liquid crystals, active matrix organic light-emitting diodes, and tetradentate platinum(II) emitters, among others.

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.

Liquid crystal display (LCD) is an electronic display device that operates by applying a varying electric voltage to a layer of liquid crystal, thereby inducing changes in its optical properties. LCDs are commonly used for portable electronic games, as viewfinders for digital cameras and camcorders, in video projection systems, for electronic billboards, as monitors for computers, and in flatpanel televisions. A working LCD consists of several components: display glass, drive electronics, control electronics, mechanical package, and power supply. The display glass --between which the liquid crystals lie--is coated with row and column electrodes and has contact pads to connect drive electronics (electric current) to each row and column electrode. The drive electronics are integrated circuits that supply current to ""drive"" the row and column electrodes. The control electronics are also integrated circuits. They decode and interpret the incoming signals--from a laptop computer, for example--and send them to the drive electronics. The mechanical package is the frame that mounts the printed circuit boards for the drive and control electronics to the display glass.Features of Liquid Crystal Display Materials and Processes embraces advanced and revised contributions and covers theoretical modeling for optoelectronics and nonlinear optics, along with experimental methods, new schemes, new approach and explanation which extends the display technology for laser, semiconductor device technology, medicine, biotechnology, etc. Liquid crystal displays (LCDs) consist of liquid crystals that are activated by electric current. They are used most frequently to display one or more lines of alpha-numeric information in a variety of devices: fax machines, laptop computer screens, answering machine call counters, scientific instruments, portable compact disc players, clocks, and so forth. The most expensive and advanced type--active matrix displays--are even being used as screens for handheld color TVs. Eventually, they may be widely used for large screen, high-definition TVs. The innovative idea, approach, and facts described here will be profitable for the readers to find a sustainable solution in a fundamental study and in the industry.

This book traces the history of liquid crystal display (LCD)development from simple laboratory samples to the flat, thin LCDs thathave become an important part of everyday life, appearing intelevision screens, computers, cellular phones, as well as numerousother consumer and industrial products.

Polymer-dispersed liquid crystal (PDLC) materials are of interest both for their potential in display technology and the fascinating science found in liquid crystals confined to small cavities. Liquid Crystal Dispersions is a comprehensive overview of the science and technology of this new class of materials. Topics covered include formation of PDLC devices, a catalog of droplet structures and transformations, device electro-optical properties, and applications. Liquid Crystal Dispersions will be of value to the nonspecialists keen on gaining an overview of this new field, as well as to specialists interested in a comprehensive review of work in this area. Contents:Introduction:The PDLC ParadigmRecipes:Emulsion Methods for PDLC FilmsPhase Separation Methods for PDLC FilmsNematic Configurations within Droplets:Factors Controlling Nematic AlignmentCatalog of Droplet StructuresTransformations between Droplet StructuresElectro-Optical Effects:Light ScatteringDichroic Effects in PDLC FilmsHysteresis and Memory EffectsPDLC Electrical PropertiesApplications:Projection DisplaysDirect-View Scattering-Mode Displaysand other papers Readership: Liquid crystal research scientists and people interested in display technology. keywords: “It is difficult to think of a better author to provide an overview of Liquid Crystal Dispersions than Paul Drzaic … a most welcome addition to his contributions … wholeheartedly recommending this book to both beginners and specialists. It is very well researched and clearly written for all levels of expertise.” Liquid Crystals Today

The mobile display industry has witnessed rapid growth, in both volume and diversification, in recent years. This trend is expected to persist with continued consumer demand for mobile communications and computing applications. Mobile displays are now integral to a wide range of devices such as MP3 players, digital cameras, PDAs, GPS map readers, portable DVD players, and electronic books, as well as the ubiquitous mobile phone and laptop computers. This proliferation of products has fuelled a significant investment into the research and development of the mobile display, with key research laboratories across the display industry and academia producing many exciting technological advancements. With contributions from well-known experts, in both industry and academia, this book presents a comprehensive coverage of the mobile display in a single volume. Ranging from an in-depth analysis of the requirements that the displays must meet, through current devices, to emerging technologies, the text features: mobile environment and human-factor considerations for the display; advances in the incumbent active matrix liquid crystal display (AMLCD) technologies; backlighting and light manipulation techniques; mobile display driver electronics and interface technologies; emerging technologies including active matrix organic light emitting diode (AMOLED), electronic paper displays, and system-on-glass (SOG) developments; application developments in eyewear, mobile projector, and 3D displays. Mobile Displays: Technology and Applications presents, in addition to the fundamentals, a detailed update on state-of-the-art advancements. It is an invaluable resource for practicing electronics and display engineers working on the development of mobile displays and their applications. It is also an extensive reference for graduates taking special courses in display technologies. 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

In 1959, about 1400 compounds forming liquid crystalline phases were known; by 1992, this number had increased to about 50 000. In portable devices like wristwatches, pocket caculators, measuring instruments, and laptop computers the liquid crystal display technology has gained total acceptance and is on the way to encompass the market of colour TV screens. This development makes a volume devoted to liquid crystals in the series Topics in Physical Chemistry desirable. Following the concept of this series, an easy introduction to liquid crystals is given, enabling the reader to understand the basic problems of liquid crystals research and application. Because of the widespread field of different research activities in liquid crystals and applications, various competent authors have been involved in writing chapters on: - Phase types, structures, and chemistry of liquid crystals; - Thermodynamical behavior and physical properties of thermotropic liquid crystals; - Liquid crystalline polymers; - Lyotropic liquid crystals; - Application of liquid crystals in spectroscopy; - Application of liquid crystals in display technology.

An unprecedented look into the basic physics, chemistry, and technology behind the LCD Most notably used for computer screens, televisions, and mobile phones, LCDs (liquid crystal displays) are a pervasive and increasingly indispensable part of our lives. Providing both an historical and a business-minded context, this extensive resource describes the unique scientific and engineering techniques used to create these beautiful, clever, and eminently useful devices. In this book, the history of the science and technology behind the LCD is described in a prelude to the development of the device, presenting a rational development theme and pinpointing innovations. The book begins with Maxwell's theory of electromagnetism, and the ultimately profound realization that light is an electromagnetic wave and an electromagnetic wave is light. The power of mathematical physics thus was brought to bear upon the study of light, and particularly the polarization of light by material bodies, including liquid crystals. After a brief historical description of polarization, a physical interpretation provides substance to the mathematical concepts. Subsequent chapters cover: Thermodynamics for liquid crystals The Maier-Saupe mean field, phenomenological, static continuum, and dynamic continuum theories The transistor and integrated circuit Glass, panels, and modules The calculus of variations The active matrix Semiconductor fabrication The global LCD business Additionally, the book illustrates how mathematics, physics, and chemistry are put to practical use in the LCDs we use every day. By describing the science from an historical perspective and in practical terms in the context of a device very familiar to readers, the book presents an engaging and unique view of the technology for everyone from science students to engineers, product designers, and indeed anyone curious about LCDs. Series Editor: Anthony C. Lowe, The Lambent Consultancy, Braishfield, UK 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.