Toshiba 56HM195 56-inch 1080p DLP HDTV Page 3
TEST BENCH FOR WEB by David Katzmaier
Color temperature (Warm color temperature and Natural mode before/after calibration) Low window (20-IRE): 9,823/6,707 K High window (80-IRE): 9,593/6,393 K Brightness (100-IRE window before/after calibration): 133.7/44.2 ftL
The 56HM195 gave mixed results in testing. Multiburst patterns from Sencore and Accupel signal generators looked excellent with 1080i sources, resolving every line, but 720p sources did not deliver nearly as much detail. Standard 480p and 480i sources were well resolved, though 480i sources via component- and S-video showed interference in high frequencies. The grayscale was quite blue overall before calibration and better afterward, although the darker end of the scale was still relatively blue and small inconsistencies were visible. Color decoding was very accurate.
Geometry was very good on my review sample, while overscan was a little worse than average at about 5%. Uniformity was worse than on many DLP sets, showing color variations across the screen in gray areas. A diagonal shadow was visible in the lower left of the screen. Component-video sources evinced more noise than HDMI sources, especially in dimmer areas of the picture. A horizontal ramp pattern showed large visible steps, instead of a smooth transition from black to white, as well as discolorations toward red and green, especially in dimmer grays. A sharpness pattern revealed no edge enhancement after sharpness was properly adjusted.