A large number of gray shades can be displayed in rms responding displays by using integer wavelets. The technique is demonstrated by displaying 64 gray shades in a twisted nematic liquid crystal display. We have reduced the hardware complexity of the display drivers by adding a few analog multiplexers that are common to a large number of stages (one for each output) in the drivers. A simple controller was implemented in a low cost complex programmable logic device.
© 2006 IEEE
T. N. Ruckmongathan, U. Manasa, R. Nethravathi, and A. R. Shashidhara, "Integer Wavelets for Displaying Gray Shades in RMS Responding Displays," J. Display Technol. 2, 292-299 (2006)