HUDSON 9
67
3.2 Picture Size and Centering
The display is centered with respect to the front bezel opening with a tolerance of 0.5mm.
3.2.1 Position Control Range
The picture position can be adjusted that a complete picture can be displayed centered.
3.2.2 Max.
Brightness
¾
210cd/m
2
¾
Test conditions: - Center of display (5)
- Video Input (RGB) =0.700V for Analog Input
-
Brightness Control is set to Max.
-
Contrast Control is set to Max.
3.2.3 Min.
Brightness
< 40% of Max luminance ( max luminance = max co max brightness)
Test conditions:
- Video input (RGB) = 0.700V for Analog Input
- Brightness control is set to min.
- Contrast control is set to min.
3.2.4 Contrast Ratio
The contrast ratio (CR) measured at center position (5) of the display should be
350(min)
and is calculated according to the following formula.
Test conditions:
- Brightness control is reset.
- Contrast control is set to max.
Brightness of all pixels white
Brightness of all pixels black
3.2.5 DCR
:
To improve Contrast Ratio, Reducing Black Luminance by Backlight Control and Data Stretch the Dynamic
Contrast Ratio (DCR) measured at center position (5) of the display should be 1500:1 (typ.) and is
calculated according to the following formula.
Test conditions: - Ambient illumination: Dark room (
DCR is ON)
- Warm up time: 30Min
- When Auto level pass in factory Brightness Control is recall.
Center of display DCR=Brightness of all pixels white/ Brightness of all pixels black.
3.3 Brightness
Uniformity
Test conditions:
- Brightness control is reset.
- Contrast control is set to max.
The brightness uniformity has to be better than 70% and is calculated according to the
following formula:
Ymin
Y=
△
【
Ymax
】
X 100%
With Y1 to Y5 as the brightness values with all pixels white at the 5 measurement positions.
Please refer to other Panel SPEC about the value.
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