Liquid crystal composition and liquid crystal display using...

Details Liquid crystal composition and liquid crystal display using... Liquid crystal composition and liquid crystal display using...

2011-08-23

2011-08-23

Visconti, Geraldina (Department: 1722)

Compositions

Liquid crystal compositions

Containing nonsteryl liquid crystalline compound of...

C252S299010, C252S299600, C428S001100, C428S001200, C349S001000, C349S056000, C349S167000, C349S182000, C430S020000

Reexamination Certificate

active

08003007

ABSTRACT:
A twisted nematic (TN) mode liquid crystal display is provided. The liquid crystal display includes first and second display panels facing each other to create an electric field therebetween, and a liquid crystal layer disposed between the first and second display panels. The liquid crystal layer contains liquid crystal molecules having positive dielectric anisotropy, and the liquid crystal layer has a structure in which long axes of the liquid crystal molecules are aligned spirally from the first display panel to the second display panel when no electric field is created in the liquid crystal layer. The liquid crystal molecules have a dielectric anisotropy (Δ∈) in a range of 4.5 to 5.7, a splay elastic constant (K11) of 14 pN or less, and a bend elastic constant (K33) of 12 pN or greater.

REFERENCES:
patent: 2007/0176146 (2007-08-01), Hirschmann et al.
patent: 2009/0141206 (2009-06-01), Suh et al.
patent: 2007248699 (2007-09-01), None
patent: 1020060083643 (2006-07-01), None

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