Open AccessElectro-optical Properties of Twisted Nematic Liquid Crystal Displays Fabricated with TIPS-pentacene Doping
Author(s) -
Jin Woo Lee
Publication year - 2013
Publication title -
transactions on electrical and electronic materials/transactions on electrical and electronic materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.201
H-Index - 18
eISSN - 2092-7592
pISSN - 1229-7607
DOI - 10.4313/teem.2013.14.2.82
Subject(s) - pentacene , materials science , liquid crystal , polyimide , doping , optoelectronics , liquid crystal display , threshold voltage , layer (electronics) , nanotechnology , voltage , thin film transistor , transistor , physics , quantum mechanics
This paper introduces 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS pentacene) doped liquid crystal (LC)alignment properties on a rubbed polyimide (PI) layer as a function of the doping concentration of TIPS pentacene.Pretilt angles, photomicrographs, and electro-optical properties of TIPS pentacene doped LCs were comparable tothose of pure LCs. However, TIPS pentacene in a LC medium supported twisted nematic-liquid crystal displays (TNLCDs)to improve electro-optical properties. The threshold voltages observed in the TN cells decreased as the TIPSpentacene concentration increased. In addition, suitable response times were observed in TN cells