Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 27 for “"liquid crystal displays"”.
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Wide Viewing Angle Liquid Crystal Displays
… of wide viewing angle and high transmittance liquid crystal displays. First, a design of wide viewing angle liquid crystal displays utilizing crossed linear polarizers is proposed. The designed multi-domain vertical-alignment liquid crystal display predicts superb contrast ratio over wide …
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Mathematical models for bistable nematic liquid crystal displays
Bistable Liquid Crystal Displays (LCDs) offer the potential for considerable power savings, compared with conventional (monostable) LCDs. The existence of two (or more) stable field-free states that are optically-distinct means that contrast can be maintained in a display without an …
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Color Illusions on Liquid Crystal Displays and Design Guidelines for Information Visualization
The influence of color on size and depth perception has been explored for a century, but there is very limited research on interventions that can reduce the color illusions. This study was motivated to identify interventions and propose design guidelines for information visualization, especially …
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A triage approach to streamline environmental footprinting : a case study for liquid crystal displays
… The methodology was applied to the case study of liquid crystal display (LCD) classes, producing a clear hierarchy of data importance to reduce uncertainty of the overall impact result. Specific data collection was only required for a subset of processes and activities (22 out of about 50) to …
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Towards Engineering and Understanding of Guest Host Interaction Between Dopants and Liquid Crystals in Liquid Crystal Displays
Liquid crystal displays are intricate devices which consist of many cells that are filled with liquid crystal hosts. The operation of the liquid crystal cell is to modulate the polarisation of light, by varying their birefringence, which in turn can be used to control the intensity of light and …
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Mitigating material supply risks: evaluation of abrasion specific comminution for commercial recovery of indium from waste liquid crystal displays
Indium is a valuable commodity of great importance to the adoption of low carbon energy technologies including solar and nuclear. Many geopolitical entities; however, view the stability of indium’s supply chain with concern. While the United States currently imports 100% of its indium from other …
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Nanopatterned anchoring layers for liquid crystals
… the theory and fabrication of inhomogeneous Liquid Crystal anchoring layers. While chemical anchoring techniques have proved useful for many applications, especially Liquid Crystal Displays, they have thus far been unable to demonstrate the ability to provide anchoring energy that varies with …
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Process modifications for improved optical characteristics of K-type polarizer
… have a wide range of purposes, primarily in liquid crystal displays (LCD), in particular those with anti-glare and contrast-enhancing applications. Current polarizers do not perform to their full potential due to "leakage" in the red and blue parts of the spectrum, where light in the axis of …
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A low power display architecture for organic light emitting diode microdisplays
… flat panel display technologies, such as liquid crystal displays (LCD) that currently dominate the market. OLED displays offer very attractive characteristics, including higher luminous, larger viewing angle, and low-power consumption, over the established LCD technology. The ability to …
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Complexes of Platinum(II) and Iridium(III) with Liquid Crystal and Luminescent Properties
… properties, luminescence (triplet emission) and liquid crystallinity. The motivation is two-fold. One possibility is that these materials could be used as polarised back-light emitters in liquid crystal displays, which would mean that the back polariser could be removed, so improving light …
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Mathematical Modelling of Smectic Liquid Crystals
Liquid crystals have received substantial research interest over the last century, especially when their beneficial applications such as liquid crystal displays were realised and developed. The changes to the molecular structure of liquid crystals can have a significant effect upon their synthesis …
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Evaluation of primary flight display enhancements for improving general aviation safety
… to one of digital sensors, common databuses, and liquid crystal displays. This integrated architecture presents an opportunity to improve general aviation safety through enhancements to the flight display utilizing the data, computing power, and display capabilities available on a modem integrated …
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Morphological studies of polymeric systems with liquid crystalline order
… structure, properties, and processing of various liquid crystal polymer systems. Morphologies of microphase separated side chain liquid crystal block copolymers are determined, both in the bulk and when confined to thin films. We show for the first time how these materials could potentially be …
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Geometry-Aware Methodology for Coupling Mechanism Analysis and Radiation Mechanism Analysis
… of noise generators, including microprocessors, liquid crystal displays, digital microphones, high-speed traces, and double-data-rate memory modules, are found in consumer electronics products. Noise generated by digital circuits can couple to the antennas and degrade their sensitivity. …
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Organic materials with acenoid and iptycene structures
… their photophysical properties in solution and liquid crystal are reported. Polarized absorption and fluorescence measurements demonstrate that these acenequinones have excellent alignment with nematic LC hosts, indicating their potential as dichroic dyes for guest-host liquid crystal displays. …
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The synthesis and properties of achiral and chiral bent-core liquid crystals
The area of liquid crystals has received substantial research effort over the last century, particularly when the beneficial applications such as Liquid Crystal Displays (LCDs) were realised and developed. For the majority of this time, it has been considered that a linear molecular shape is …
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The synthesis and properties of liquid crystals with bulky terminal groups for bookshelf geometry ferroelectric mixtures
The area of liquid crystals has received a substantial research effort over the last century, particularly when the beneficial applications such as Liquid Crystal Displays (LCDs) were realised and developed. The changes to the molecular structure of liquid crystals can have a significant effect …
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Identification, Characterization, and Speciation of Rare Earth Elements in Coal Refuse
… critical role in modern-day technologies such as liquid-crystal displays, GPS systems, and fiber optic cables. A majority of the mining of these elements is from China; however, due to decreasing reserves a need for alternative processes for extracting and processing rare earth elements (REEs) is …
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Mathematical models for polymer-nematic interactions
… a mathematical model that consists of a nematic liquid crystal layer sandwiched between two parallel bounding plates, across which an external field may be applied. Particular attention is paid to the effect of an applied field on the layer as well as the interaction between the liquid crystal …
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