Filter
Top Products
10
A2. BRIGHTNESS UNIFORMITY
Unit: %
Brightness: Default
Contrast: Default
Uniformity =
9
987654321
)13,12,11,10(
LLLLLLLLL
EEEEMIN
++++++++
1/20h
1/20w
E10
E12
E11
E13
L5
A3. BRIGHTNESS DIFFERENCE
Unit: %
Brightness: Default
Contrast: Default
Brightness Difference=
9
987654321
))13,12,11,10()13,12,11,10((
LLLLLLLLL
EEEEMINEEEEMAX
++++++++
−
A4. ANSI CONTRAST
Unit: Contrast : 1
Brightness: Default
Contrast: Default
Contrast Ratio shall be determined from illuminance values obtained from a
black-and-white ”chessboard” pattern consisting of 16 equal rectangles. The
white rectangles shall be at 100% gray and the black rectangles at 0% gray.
Illuminance measurements shall be made at the center of each of the rectangles.
Contrast Ratio = Average lux value of the white rectangles/Average lux value
of the black rectangles