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Title: Novel addressing methods for fast responding LCDs
Authors: Ruckmongathan, T.N.
Issue Date: 1993
Publisher: SAE
Citation: Asahi garasu kenkyu hokoku, (Reports of the Research Lab. Asahi Glass Company)1993, Vol.43, No. 1, p65-87.
Abstract: The passive matrix displays based on Super Twisted Nematic (STN) Liquid Crystal Displays (LCDs) are popular due to their low cost. However, the response times of these displays are in the range of 200 ms. The improvement of response times of STN LCDs to about 50 ms results in poor contrast ratio, when conventional addressing technique is used. This is due to the frame response phenomenon in fast responding LCDs. Novel addressing techniques to suppress the frame response phenomenon are presented. These techniques lead to a high contrast ratio, good brightness uniformity and lower supply voltage as compared to the conventional technique. The basic principle of these addressing techniques and methods for displaying gray shades are discussed.
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