Title :
Measurement of Pretilt Angle and Cell Gap in Reflective Vertically Aligned Nematics
Author :
Quintana, X. ; Geday, M.A. ; Cerrolaza, B. ; Pérez-Medialdea, D. ; Bennis, N. ; Otón, J.M.
Author_Institution :
ETSI Telecomunicacion, Madrid
fDate :
Jan. 31 2007-Feb. 2 2007
Abstract :
An experimental setup to measure the pretilt angle and cell gap in reflective VAN (vertically aligned nematic liquid crystals) has been developed. This setup, based on the rotation method, has been modified in order to measure simultaneously high pretilt angles in reflective cells along with the cell gap. The determination of the pretilt angle is achieved by finding the rotation angle for maximum and minimum transmittances.
Keywords :
angular measurement; liquid crystal displays; nematic liquid crystals; cell gap measurement; liquid crystal displays; pretilt angle measurement; reflective vertically aligned nematics; rotation method; vertically aligned nematic liquid crystals; Crystalline materials; Delay; Glass; Goniometers; Liquid crystal displays; Liquid crystal on silicon; Liquid crystals; Manufacturing; Optical polarization; Rotation measurement; Pretilt angle; VAN (Vertically Aligned Nematics); cell gap;
Conference_Titel :
Electron Devices, 2007 Spanish Conference on
Conference_Location :
Madrid
Print_ISBN :
1-4244-0868-7
DOI :
10.1109/SCED.2007.384041
