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P‐47: Evaluation Method of Gap and Pretilt Angle for Twisted‐Nematic Liquid‐Crystal Cells by Apparent Retardation Measurement using Two Wavelengths
Author(s) -
Kurata Tetsuyuki,
Satake Tetsuya,
Nishioka Takahiro,
Maehara Toshiaki
Publication year - 2003
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.1832290
Subject(s) - liquid crystal , materials science , wavelength , optics , liquid crystal display , optoelectronics , voltage , band gap , physics , quantum mechanics
We have proposed a novel method of evaluating a gap and a pretilt angle for TN cells from apparent retardation measured with different wavelengths. This method is suitable for the LCD estimation because of no voltage application and easy retardation measurement, even if the rough value of the gap is unknown.