Title :
Display performance improvement in a TFD-LCD with reduced image-sticking
Author :
Kamagami, S. ; Sunohara, K. ; Tanaka, Y. ; Morita, H.
Author_Institution :
Toshiba Corp., Yokohama, Japan
Abstract :
image-sticking in a TFD (thin-film diode)-LCD (liquid crystal display) was examined. The DC offset voltage difference between ON-state and OFF-state is shown to cause image-sticking. It cannot be reduced by external DC offset compensation, which removes flicker. However, the DC offset voltage differences between ON-state and OFF-state are changed according to bias ratio. Therefore, the image-sticking can be reduced to less than 1%, both by bias ratio optimization and by its compensation according to temperature changes.<>
Keywords :
compensation; liquid crystal displays; random noise; thin film devices; DC offset voltage; bias ratio; compensation; flicker; image-sticking; liquid crystal display; temperature changes; thin-film diode; Chemical elements; Diodes; Displays; Electrodes; Frequency; Image generation; Insulation; Liquid crystals; Titanium; Voltage fluctuations;
Conference_Titel :
Display Research Conference, 1991., Conference Record of the 1991 International
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-0213-3
DOI :
10.1109/DISPL.1991.167469
