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Titolo:
Passive matrix SSFLC display with analogue grey levels using PTFE alignment films
Autore:
Campoli, F; Beccherelli, R; dAlessandro, A; Ferrara, V; Maltese, P;
Indirizzi:
Univ Rome La Sapienza, Dept Ingn Elect, I-00184 Rome, Italy Univ Rome La Sapienza Rome Italy I-00184 Ingn Elect, I-00184 Rome, Italy Ist Nazl Fis Mat, I-00184 Rome, Italy Ist Nazl Fis Mat Rome Italy I-00184 st Nazl Fis Mat, I-00184 Rome, Italy
Titolo Testata:
DISPLAYS
fascicolo: 4, volume: 20, anno: 1999,
pagine: 191 - 197
SICI:
0141-9382(199912)20:4<191:PMSDWA>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
THIN-FILMS;
Keywords:
ferroelectric liquid crystals; alignment layers; gradations; PTFE; image sticking;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: d'Alessandro, A Univ Rome La Sapienza, Dept Ingn Elect, Via Eudossiana 18,I-00184 Rome, Italy Univ Rome La Sapienza Via Eudossiana 18 Rome Italy I-00184
Citazione:
F. Campoli et al., "Passive matrix SSFLC display with analogue grey levels using PTFE alignment films", DISPLAYS, 20(4), 1999, pp. 191-197

Abstract

Fabrication and performance of a surface stabilised ferroelectric liquid crystal display are reported. Grey shades are obtained by modulating the width of switched FLC microdomains by means of an electric field gradient distributed over the pixel, between adjacent metal columns. Such a gradient, depending on the data voltages, is achieved through a high resistance film deposited on the column glass plate. The choice of PTFE (Poly-tetra-fluoro-ethylene) alignment layers, easily deposited by friction, provides very low hysteresis and sticking effect. Morphology of alignment layers, carried out by AFM, is briefly described and evaluated. Addressing mode voltage waveforms to obtain grey shades are also reported. (C) 1999 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 01:52:23