HD2+DLP: The Next Wave HT Labs Measures: Sharp XV-Z12000 DLP Projector
Contrast Ratio (black / white):
Measured Resolution with the Leader LT-446:
480: 480 (per picture height)
720p: 720 (pph)
1080i: 720 (pph)
DC Restoration (poor, average, good, excellent):
Color Decoder (poor, average, good, excellent):
Measured Color Points:
Red Color Point: x=0.646, y=0.331
Green Color Point: x=0.318, y=0.641
Blue Color Point: x=0.149, y=0.052
The top chart shows the XV-Z12000's gray scale relative to its color temperature at various levels of intensity, or brightness (20 IRE is dark gray; 100 IRE is bright white). The gray scale as set by the factory, in the 6500 color-temperature mode and the standard gamma mode, measures somewhat cool across the entire gray scale. After making adjustments using the Photo Research PR-650, the gray scale measures extremely well, within 90 K of D6500, the accurate color temperature, across the entire range.
The bottom chart shows the gray scale (or color temperature) relative to the color points of the display's red, green, and blue color-filter-wheel segments. These are somewhat off those specified by SMPTE. Red is close, blue is slightly purple, and green is more yellowish-green, as well as being oversaturated.
Using a full-field 100-IRE white (6.85 ft-L) and a full-field 0-IRE black (0.002 ft-L), the contrast ratio was 3,425:1. Using a 16-box checkerboard pattern (ANSI contrast), the contrast ratio was 424:1. The best contrast ratio was achieved with the high-contrast iris setting and the economy mode turned off. The brightest image was achieved with the high-brightness iris setting and the economy mode turned off. In this mode, the XV-Z12000 produced 20.33 ft-L with a 100-IRE window (on an 87-inch-wide, 1.0-gain Da-Lite Da-Mat screen).—GM