Title :
Gray Shades in RMS Responding Displays With Wavelets Based on the Slant Transform
Author :
Ruckmongathan, T.N. ; Nadig, Deepa S. ; Ranjitha, P.R.
Author_Institution :
Raman Res. Inst., Bangalore
fDate :
4/1/2007 12:00:00 AM
Abstract :
A technique for displaying gray shades in root-mean-square responding displays is proposed. It is based on wavelets derived from a slant matrix of order 3. The authors have shown that the hardware complexity of display drivers and controller can be reduced to the same extent as that of the technique using the simple integer Haar wavelets. The number of time intervals to complete a cycle is 25 % less than that of Haar wavelets, and have also shown that it is not necessary to compute the orthogonal transform repeatedly
Keywords :
Haar transforms; display devices; driver circuits; matrix algebra; mean square error methods; wavelet transforms; Haar wavelets; LCD; RMS responding displays; display controller; display drivers; gray shades; hardware complexity; liquid-crystal displays; matrix addressing; multiline addressing; orthogonal transform; root-mean-square responding displays; slant matrix; slant transform; Amplitude modulation; Brightness; Driver circuits; Electrodes; Hardware; Liquid crystal displays; Low voltage; Pulse modulation; Pulse width modulation; Wavelet transforms; Gray shades; liquid-crystal displays (LCDs); matrix addressing; multiline addressing; wavelets;
Journal_Title :
Electron Devices, IEEE Transactions on
DOI :
10.1109/TED.2007.892023
