77
Meridian 1
4. Visual characteristics
Test
conditions
Unless otherwise specified, this specification is defined under the following conditions.
(1) Input signal:
As defined in 3.3, 1366*768
non-interlaced mode (1366*768@60Hz
85.5
MHz), signal sources must have
75 ohm output impedance
(2) Luminance setting:
controls to be set to 300 nits with full screen 100 % duty cycle white signal
(3) Warm up:
More than 30 minutes after power on with signal supplied.
(4) Ambient light:
400 -- 600 lux
(5) Ambient temperature:
20 ± 5
q
C
Brightness
To follow Panel specification
Image size
Actual display size: Refer to
2.1
LCD PANEL spec.
Brightness uniformity
Set contrast at 100% and turn the brightness to get average above 300 nits at centre of the screen. Apply the Fig 1;
it should comply with the following formula:
B_min
X
100%
>
75%
(Follow
panel
spec)
B_max
Where B_max =Maximum brightness
B_min = Minimum brightness
Check Cross talk(s)
Apply Pattern 2. Set contrast and brightness at 100 %. Measure YA. Then output Pattern 3 and measure YB. The
cross talk value:
ABS
(YA
-
YB)
X 100% < 1.5 %
YA
White Color adjustment
There are three factory preset white color 9300K, 6500 and sRGB align by FGA function. Apply full gray 64 pattern,
with brightness in 100 % position and the contrast control at 50 % position. The 1931 CIE Chromaticity (color
triangle) diagram (x, y) coordinate for the screen center should be:
Product specification
CIE coordinates
(x,y)
9300K
x = 0.283 ± 0.02
y = 0.297 ± 0.02
PerfectuneII
6500K/sRGB
x = 0.313 ± 0.02
y = 0.329 ± 0.02
PerfectuneII
sRGB
x = 0.313 ± 0.02
y = 0.329 ± 0.02
PerfectuneII