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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/872

Title: Displaying grey shades in liquid crystal displays
Authors: Ruckmongathan, T.N.
Keywords: Liquid crystal displays
Addressing
Multiplexing
Gray shades
Issue Date: Aug-2003
Publisher: Indian Academy of Sciences, Bangalore, India.
Citation: Pramana, 2003, Vol. 61, p313-329.
Abstract: Quality of image in a display depends on the contrast, colour, resolution and the number of gray shades. A large number of gray shades is necessary to display images without any contour lines. These contours are due to limited number of gray shades in the display causing abrupt changes in grayness of the image, while the original image has a gradual change in brightness. Amplitude modulation has the capability to display a large number of gray shades with minimum number of time intervals [1,2]. This paper will cover the underlying principle of amplitude modulation, some variants and its extension to multi-line addressing. Other techniques for displaying gray shades in passive matrix displays are reviewed for the sake of comparison.
Description: Proceedings of the international conference on liquid crystals and other soft materials held in 2002 at the Raman Research Institute, 2003.
URI: http://hdl.handle.net/2289/872
ISSN: 0304-4289
Copyright: Indian Academy of Sciences, Bangalore, India.
Appears in Collections:Research Papers (SCM)

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