Greyscale and color in ferroelectric liquid crystal displays

A. Graham; Jonathon R. Hughes; John Clifford Jones; Meirion F. Lewis; Damien G. McDonnell; Andrew John Slaney; Ruth Louise Vizard

doi:10.1117/12.210977

5 June 1995 Greyscale and color in ferroelectric liquid crystal displays

A. Graham, Jonathon R. Hughes, John Clifford Jones, Meirion F. Lewis, Damien G. McDonnell, Andrew John Slaney, Ruth Louise Vizard

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Proceedings Volume 2462, Cockpit Displays II; (1995) https://doi.org/10.1117/12.210977
Event: SPIE's 1995 Symposium on OE/Aerospace Sensing and Dual Use Photonics, 1995, Orlando, FL, United States

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.

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A. Graham, Jonathon R. Hughes, John Clifford Jones, Meirion F. Lewis, Damien G. McDonnell, Andrew John Slaney, and Ruth Louise Vizard "Greyscale and color in ferroelectric liquid crystal displays", Proc. SPIE 2462, Cockpit Displays II, (5 June 1995); https://doi.org/10.1117/12.210977

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KEYWORDS

LCDs

Lamps

Camera shutters

Ferroelectric LCDs

Liquid crystals

Eye

Optical resolution

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