In our effort to continuously improve the quality of our displays, the NHD-0420DZ-FL-YBW and NHD-0420DZ-NSW-BBW have been revised as of May 15th 2011. We have changed our backlight assembly to increase brightness, decrease light loss, and improve resistance to shock and vibration. All displays manufactured after this date will feature the revision. Please pay special attention to the following: Bezel width change from 87.3mm to 96.8mm Bezel height changed from 41.7mm to 39.3mm Bezel depth changed from 9.3mm to 9.0mm Please contact a Mouser Technical Sales Representative for further information. 5-1111-17