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P‐149: Temperature‐Dependent Physical Model of Twisted Nematic Pixel in Active‐Matrix Liquid Crystal Displays
Author(s) -
Kim Jong-Man,
Lee Seung-Hyuck,
Jeon Dong-Hwan,
Lee Seung-Woo
Publication year - 2016
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 - 10.1002/sdtp.11018
Subject(s) - liquid crystal , birefringence , active matrix , materials science , liquid crystal display , viscosity , capacitance , matrix (chemical analysis) , dielectric , voltage , transmittance , anisotropy , constant (computer programming) , optoelectronics , condensed matter physics , optics , molecule , composite material , physics , chemistry , organic chemistry , electrode , layer (electronics) , quantum mechanics , computer science , programming language , thin film transistor
This paper proposes a new temperature‐dependent physical model to predict the optical responses of an active‐matrix liquid crystal display (AMLCD) with a twisted nematic (TN) mode. For the behavioral model, three types of data are most important: 1) capacitance‐voltage; 2) transmittance‐voltage characteristics; and 3) time constant parameters a 1 and a 2 . We extract them from the physical properties of TN LC molecules, such as dielectric anisotropy, birefringence, viscosity, cell gap, and elastic constant. In addition, we extract three types of temperature‐dependent data from the physical properties of LC molecules. The simulation results of the optical responses show excellent matches with the measurement ones regardless of types of LCDs.