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P‐95: Electro‐Optical Analysis of Super‐IPS LCDs by Using 3‐D Molecular Director Simulation of TFT‐LCDs
Author(s) -
Jung SungMin,
Jang SangHan,
Park KiBok,
Lee SeungChul,
Seo ChangRyong,
Park WooSang
Publication year - 2004
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 - 10.1889/1.1831054
Subject(s) - liquid crystal display , transmittance , viewing angle , pixel , optics , thin film transistor , materials science , nonlinear system , contrast ratio , polar , transmission (telecommunications) , optoelectronics , physics , computer science , telecommunications , layer (electronics) , quantum mechanics , astronomy , composite material
In this study, we performed a three‐dimensional computer simulation for the electro‐optical characteristics of a super in‐plane switching liquid crystal displays(Super IPS‐LCDs) in a unit pixel of TFT‐LCDs, for the first time, and compared the results with experiments. The dynamic equation of continuum theory for liquid crystals is based on a tensorial formulation. As a numerical technique, we used a finite difference method(FDM) suitable for highly nonlinear equations. As a result, we confirmed that the simulation results such as a transmission profile over a pixel and an average transmittance as a function of applied voltage showed good agreement with the experimental results. We also revealed that Super IPS‐LCDs show good wide viewing angle characteristics with contrast ratio of more than 50:1 up to a polar angle of ±90° both in the horizontal and the vertical directions.