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Proceedings Paper

Greyscale and color in ferroelectric liquid crystal displays
Author(s): A. Graham; Jonathon R. Hughes; John Clifford Jones; Meirion F. Lewis; Damien G. McDonnell; Andrew John Slaney; Ruth Louise Vizard
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Paper Abstract

Liquid crystal displays by virtue of their flat profile, low volume and low power offer the user a number of advantages over CRTs, without compromising on the image quality. High definition (1000 line) flat panel displays enhance image recognition, which improves the viewer's ability to resolve images. High definition displays are required over a wide spectrum of sizes for HMDs through HDDs, to multifunction consoles. These size and complexity requirements may be uniquely met with ferroelectric liquid crystal display (FLCD) technology. The fast line address times (l.a.t. approximately equals 20 microsecond(s) ) may be traded off to meet complexity, color and grayscale. This paper describes the latest developments in FLCD design to produce temporal and spatial dither grayscale. These exploit new developments in material response times and fast drive schemes developed at DRA Malvern. The increased speed provided by the Malvern drive schemes also allows color to be implemented in a temporal manner similar to temporal grayscale. A new method to add color to existing fast displays using a frame sequential technique is also described.

Paper Details

Date Published: 5 June 1995
PDF: 11 pages
Proc. SPIE 2462, Cockpit Displays II, (5 June 1995); doi: 10.1117/12.210977
Show Author Affiliations
A. Graham, Defence Research Agency Malvern (United Kingdom)
Jonathon R. Hughes, Defence Research Agency Malvern (United Kingdom)
John Clifford Jones, Defence Research Agency Malvern (United Kingdom)
Meirion F. Lewis, Defence Research Agency Malvern (United Kingdom)
Damien G. McDonnell, Defence Research Agency Malvern (United Kingdom)
Andrew John Slaney, Defence Research Agency Malvern (United Kingdom)
Ruth Louise Vizard, Defence Research Agency Malvern (United Kingdom)


Published in SPIE Proceedings Vol. 2462:
Cockpit Displays II
Darrel G. Hopper, Editor(s)

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