Open AccessDynamic Pixel Models for a‐Si TFT‐LCD and Their Implementation in SPICE
Author(s) -
Wang InSoo,
Lee GiChang,
Kim TaeHyun,
Lee WonJun,
Shin JangKyoo
Publication year - 2012
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.12.0211.0448
Subject(s) - thin film transistor , spice , liquid crystal display , capacitance , transistor , electronic engineering , flicker , pixel , optoelectronics , materials science , electrical engineering , computer science , engineering , voltage , physics , artificial intelligence , electrode , layer (electronics) , quantum mechanics , composite material
A dynamic analysis of an amorphous silicon (a‐Si) thin film transistor liquid crystal display (TFT‐LCD) pixel is presented using new a‐Si TFT and liquid crystal (LC) capacitance models for a Simulation Program with Integrated Circuit Emphasis (SPICE) simulator. This dynamic analysis will be useful when predicting the performance of LCDs. The a‐Si TFT model is developed to accurately estimate a‐Si TFT characteristics of a bias‐dependent gate to source and gate to drain capacitance. Moreover, the LC capacitance model is developed using a simplified diode circuit model. It is possible to accurately predict TFT‐LCD characteristics such as flicker phenomena when implementing the proposed simulation model.