Title page for etd-0826111-170430


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URN etd-0826111-170430
Author Chi-Shin Shieh
Author's Email Address No Public.
Statistics This thesis had been viewed 5351 times. Download 473 times.
Department Physics
Year 2010
Semester 2
Degree Master
Type of Document
Language English
Title Methods of optical measurements based on the reflection of a double-ellipsoid structure
Date of Defense 2011-07-14
Page Count 68
Keyword
  • Liquid-crystal cell gap
  • Pretilt angle
  • Vertical alignment liquid-crystal cell
  • Conoscopy
  • Double-ellipsoid structure
  • Light dispersion
  • Abstract In this study, a double-ellipsoid structure is proposed for measurements of optical properties of liquid-crystal displays (LCDs). By using the double-ellipsoid structure, light dispersion and measurement time, which occurs during the measurement of optical properties of LCDs, can be greatly reduced. The system also significantly decreases reflective loss on interface, increasing the accuracy of the measurement. Moreover, by using the conoscopy measured from the proposed structure, light distribution of the dark state along off-axis direction can be analyzed. Based on the analysis, the cell gap and pretilt angle of vertical alignment liquid-crystals (VA-LCs) are evaluated. The proposed structure, which exhibits a fast and high accuracy measurement, is highly promising for future optical measurement of LCDs.
    Advisory Committee
  • Chie-Tong Kuo - chair
  • Chi-Yen Huang - co-chair
  • Chi-Huang Lin - advisor
  • Files
  • etd-0826111-170430.pdf
  • Indicate in-campus at 0 year and off-campus access at 2 year.
    Date of Submission 2011-08-26

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