Title :
A simple method for measuring the cell gap of a reflective twisted nematic LCD
Author :
Zhu, Xinyu ; Choi, Wing-Kit ; Wu, Shin-Tson
Author_Institution :
Sch. of Opt., Central Florida Univ., Orlando, FL, USA
fDate :
11/1/2002 12:00:00 AM
Abstract :
A simple method is demonstrated for measuring the cell gap of reflective twisted nematic (RTN) liquid crystal (LC) cells. This method utilizes a single laser beam and crossed polarizer configuration such that Fabry-Perot effect and surface reflection are eliminated. Experimental results agree well with theory.
Keywords :
distance measurement; liquid crystal displays; measurement by laser beam; nematic liquid crystals; optical polarisers; Fabry-Perot effect elimination; He-Ne laser; LCD performance; cell gap measurement method; crossed-polarizer configuration; reflective twisted nematic LCD; single laser beam; surface reflection elimination; Birefringence; Indium tin oxide; Laser theory; Liquid crystal displays; Optical reflection; Optical surface waves; Phase measurement; Polarization; Reflectivity; Wavelength measurement;
Journal_Title :
Electron Devices, IEEE Transactions on
DOI :
10.1109/TED.2002.804718
