NDLI: A High-Speed Measurement Method for Reflective Liquid Crystal Cells Using a Liquid Crystal Polarization-Converting Device

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A High-Speed Measurement Method for Reflective Liquid Crystal Cells Using a Liquid Crystal Polarization-Converting Device

Content Provider	IEEE Xplore Digital Library
Author	Kawamura, M. Sato, S.
Copyright Year	2005
Abstract	We propose a novel measurement method for determining cell parameters, such as a cell thickness and twist angle in reflective liquid crystal (LC) cells, by using a unique polarization-converting device prepared with a circularly and homogeneously aligned LC (CH-LC) cell. The light intensity distributions from the reflective LC cell transmitted twice through the CH-LC cell are measured by a charge-coupled device array camera. Cell thickness can be derived by using coordinate values of local minimum spot in the spatial light intensity distribution measured at one wavelength, where the pretilt angle is assumed to be the designed value. Both cell thickness and twist angle can also be determined by two local minimum positions of the light intensity at two different wavelengths and the effects of a quarter-wave plate are discussed
Sponsorship	IEEE Lasers and Electro-Optics Society Optical Society of America
Starting Page	22
Ending Page	28
Page Count	7
File Size	3936317
File Format	PDF
ISSN	1551319X
Volume Number	3
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-03-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Liquid crystal devices Optical polarization Wavelength measurement Thickness measurement Liquid crystal displays Optical arrays Optical retarders Optical surface waves High speed optical techniques Charge coupled devices twist angle Cell thickness high-speed measurement liquid crystal (LC) polarization-converting device reflective LC cells
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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