LCD with notch filter

Details LCD with notch filter LCD with notch filter

1995-09-22

1998-04-07

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

349106, 349 70, G02F 11335

Patent

active

057370451

ABSTRACT:
A notch filter is provided in a RGB color twisted nematic liquid crystal display (LCD) apparatus, the notch filter preferably being located between the light source and the display panel. Undesirable peak(s) (e.g. blue-green) in the light rays from the source are substantially reduced or eliminated by the notch filter thereby improving the color saturation characteristics of the image reaching the viewer.

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patent: 5414546 (1995-05-01), Fergason
patent: 5526145 (1996-06-01), Weber
T. Scheffer et al "Twisted Nematic and Supertwisted Nematic Mode LCDs" Liquid Crystals Applications and Uses-vol. 1-1990 -chapter 10 -pp. 263-268 .

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