CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Necessary conditions for display and fast switching of high contrast images by antiferroelectric liquid crystal displays

Lachezar Komitov ; Nils Olsson ; Bertil Helgee (Institutionen för kemi- och bioteknik, Polymerteknologi ; Institutionen för fysik (GU))
Appl. Phys. Lett. (0003-6951). Vol. 89 (2006), p. 121919.
[Artikel, refereegranskad vetenskaplig]

Antiferroelectric liquid crystals (AFLC) with 45° molecular tilt were stated to be the solution of the dark state problem in AFLC displays (AFLCDs). However, AFLCs that are available at present actually possess antiferroelectric (AF) to ferroelectric (F) transition of first order characterized by slow switching times which in turn deteriorates the dark state in AFLCDs. Here, we report on the switching behavior of a siloxane AFLC dimer with molecular tilt close to 45°. This material exhibits AF to F transition of second order at lower temperatures, something that enables display and fast switching of high contrast images in AFLCDs. ©2006 American Institute of Physics

Nyckelord: organic compounds, antiferroelectric liquid crystals, liquid crystal displays, dark states, ferroelectric transitions, ferroelectric switching



Denna post skapades 2007-11-08. Senast ändrad 2010-02-25.
CPL Pubid: 61473

 

Läs direkt!


Länk till annan sajt (kan kräva inloggning)


Institutioner (Chalmers)

Institutionen för fysik (GU) (GU)
Institutionen för kemi- och bioteknik, Polymerteknologi (2005-2014)

Ämnesområden

Fysik
Optik
Kritiska fenomen (fasövergångar)
Organisk syntes
Polymerkemi

Chalmers infrastruktur