Search for dissertations about: "liquid crystal"

Showing result 1 - 5 of 144 swedish dissertations containing the words liquid crystal.

  1. 1. Optical Characterization and Optimization of Display Components Some Applications to Liquid-Crystal-Based and Electrochromics-Based Devices

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Iryna Valyukh; Uppsala universitet.; Högskolan Dalarna.; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES Physics Other physics Optics; NATURVETENSKAP Fysik Övrig fysik Optik; TECHNOLOGY Engineering physics Optical physics; TEKNIKVETENSKAP Teknisk fysik Optisk fysik; MATHEMATICS Applied mathematics Numerical analysis; MATEMATIK Tillämpad matematik Numerisk analys; Solid State Physics; fasta tillståndets fysik; Information Systems; data- och systemvetenskap; ellipsometry; liquid crystal; LCD; optical anizotropy; electrochromic; inverse problems;

    Abstract : This dissertation is focused on theoretical and experimental studies of optical properties of materials and multilayer structures composing liquid crystal displays (LCDs) and electrochromic (EC) devices.By applying spectroscopic ellipsometry, we have determined the optical constants of thin films of electrochromic tungsten oxide (WOx) and nickel oxide (NiOy), the films’ thickness and roughness. READ MORE

  2. 2. Nematic Liquid Crystal Spatial Light Modulators for Laser Beam Steering

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Emil Hällstig; Uppsala universitet.; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; spatial light modulator; liquid crystal; beam steering; tracking; phase modulation; fringing field; director distribution; finite-difference time-domain; polarization; temporal properties; Fysik; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik;

    Abstract : Laser beam control is important in many applications. Phase modulating spatial light modulators (SLMs) can be used to electronically alter the phase distribution of an optical wave-front and thus change the direction and shape of a laser beam. READ MORE

  3. 3. Investigations of Optical Properties and Photo-Alignment in Bistable Nematic Liquid Crystal Displays

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Jesper Osterman; Uppsala universitet.; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Engineering physics; TEKNIKVETENSKAP Teknisk fysik; Engineering physics; LCD; liquid crystal; bistable; nematic; optical; modes; photo-alignment; Teknisk fysik;

    Abstract : In recent years portable electronic devices, such as mobile phones and personal digital assistants, have increased the demand for high performance displays with low power consumption. An interesting candidate with the potential of fulfilling these demands is the reflective single-polarizer surface controlled bistable twisted nematic liquid crystal display. READ MORE

  4. 4. Soft proofing using liquid crystal displays

    University dissertation from Stockholm : Numerisk analys och datalogi

    Author : Sara Leckner; KTH.; [2004]
    Keywords : displays; lcd; crt; premedia; prepress; soft proof; workflows;

    Abstract : Development of colour management systems, the level ofstandardisation, as well as the embedding of facilities forcolour management into computer operating systems and software,enables successful future interoperability of colour reproductionin the graphic arts industry. Yet colour reproduction from onemedium to another, still gives rise to inconsistencies. READ MORE

  5. 5. Adsorption of Surfactants at the Solid-Liquid Interface A Quartz Crystal Microbalance Study

    University dissertation from Stockholm : Kemi

    Author : Johan Jim Roger Stålgren; KTH.; [2002]
    Keywords : Adsorption; QCM; Surfactants; Thiols;

    Abstract : .... READ MORE