Please use this identifier to cite or link to this item:
Title: Method and device to optimize power consumption in liquid crystal display
Authors: Ruckmongathan, T.N.
Issue Date: 2012
Citation: US Patent 8111228, 2012;US Patent US2008303772 (A1), 2008
Abstract: Power consumption in liquid crystal displays is analyzed by including frequent polarity reversals and duty cycle control. A multi-step voltage profile is proposed to reduce the power consumption in multiplexed and non-multiplexed displays. The present invention relates to a method to optimize power consumption in Liquid Crystal Display, wherein said method comprises steps of: applying multi-step waveform for selecting pre-determined address lines, maintaining ratio of step-width (Ts) and pulse width (T) between 0.02 to 0.25, and making final step duration (Tf) greater than or equal to twice the step width (Ts) to optimize power supply of the Liquid Crystal Display and apply a correction voltage if the distortion is significant and modifying the step sizes to reduce the supply voltage of the driver.
Description: Open Access
Alternative Location:
Copyright: 2007
Appears in Collections:Patents (SCM)

Files in This Item:
File Description SizeFormat 
US8111228.pdfOpen Access196.37 kBAdobe PDFView/Open

Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.