Title :
Content based contrast enhancement for liquid crystal displays with backlight modulation
Author :
Raman, N. ; Hekstra, G.J.
Author_Institution :
Video Process. & Visual Perception Group, Philips Res. Lab., Eindhoven, Netherlands
Abstract :
One of the major problems plaguing liquid crystal displays (LCDs) is the light leakage at low grey levels. This undesirable effect degrades the ability of these displays to discern and display dark scenes accurately. In this paper, we propose an architecture that will largely eliminate this undesirable effect through backlight modulation. Other benefits of backlight modulation will also be outlined and the results shown.
Keywords :
image enhancement; liquid crystal displays; modulation; video signal processing; backlight modulation; content based contrast enhancement; light leakage; liquid crystal display; Active matrix liquid crystal displays; Algorithm design and analysis; Brightness; Computer architecture; Dynamic range; Histograms; Image analysis; Lamps; Layout; Liquid crystal displays;
Journal_Title :
Consumer Electronics, IEEE Transactions on
DOI :
10.1109/TCE.2005.1405693