Mode switching of liquid crystals improves display performance

High Performance Negative Dielectric Anisotropy Liquid Crystals for Display Applications

We review recent progress in the development of high birefringence (Δn ≥ 0.12) negative dielectric anisotropy (Δε < 0) liquid crystals (LCs) for direct-view and projection displays. For mobile displays, our UCF-N2 (low viscosity, negative Δε, high Δn) based homogeneous alignment fringe-field switching (called n-FFS) mode exhibits superior performance to p-FFS in transmittance, single gamma curv...

Bistable Twisted Nematic Liquid Crystals Display with Permanent Grayscales and Fast Switching

Permanent grayscales in a π bistable twisted nematic liquid crystal display have been demonstrated. This display can be switched between –22.5° and 157.5° twist states by means of a combination of strong in-plane electric fields and vertical electric field for creating both the planar anchoring breaking and an electrohydrodynamic flow. The switching of the twist states during the Frederiks tran...

The Switching Dynamics of the Plasma Addressed Liquid Crystal Display

The plasma addressed liquid crystal display (PLAC) is a flat, large area, full-colour television and monitor technology made possible through the unique application of the properties of an ionized gas. Liquid crystal displays require an active switching element at the location of each pixel. The PALC display uses a plasma switch to address each of the display pixels, replacing typically used se...

Directed Vertical Alignment Liquid Crystal Display with Fast Switching

V-Shaped switching and interlayer interactions in ferroelectric liquid crystals

Linear electrooptic responses in ferroelectric liquid crystals can be achieved via thresholdless switching. The molecular parameters for the design of ferroelectric liquid crystals that may yield a thresholdless response have not been delineated so far. In this article we explore some of the chemical design features that may be utilised in controlling switching processes, and we develop propert...