TITLE

Temperature compensated overdrive in vertically aligned liquid crystal displays

AUTHOR(S)
Vanbrabant, Pieter J. M.; Velthoven-Dessaud, Nathalie; Strömer, Jan F.; Neyts, Kristiaan
PUB. DATE
December 2008
SOURCE
Applied Physics Letters;12/29/2008, Vol. 93 Issue 26, p261112
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The occurrence of backflow in vertically aligned liquid crystal displays (VA-LCDs) inhibits application of conventional overdrive techniques to achieve faster switching. This (hydro)dynamic behavior is simulated accurately by using the Leslie–Ericksen theory in a one-dimensional model. Taking the limitations due to backflow into account from these simulations, we designed overdrive schemes for VA-LCDs. The temperature sensitivity of a fixed overdrive table was eliminated by adapting the scheme to the simulated temperature variations in the dynamic behavior. Experimental verification in the 25–75 °C range shows that the resulting temperature compensated overdrive leads to faster switching, which is expected to be artifact free.
ACCESSION #
36054114

 

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