LE1901w 19-inch Widescreen LCD Monitor 19-inch HP LE1901w Widescreen LCD Monitor General Features: Black color 19-inch TFT LCD widescreen display 16:10 aspect ratio 1440 x 900 @ 60 Hz resolution 0.2835 mm pixel pitch 250 cd/m2 brightness 1000:1 typical contrast ratio 5 ms response time 160 horizontal viewing angle 160 vertical viewing angle 24 ~ 83 KHz horizontal frequency range 50 ~ 76 Hz vertical frequency range