9. DEVICE FRONT
9.1 Display
The Vision 307 device is equipped with a 7-inch TFT LCD module with a resolution of 800 x 480 pixels
(WXGA) and a LED backlight unit.
9.1.1 Characteristics
Symbol Parameter Note Min Typ Unit
L
C
Center luminance of white 800 cd/m
2
CR Contrast ratio 1000 1150
t
L
LED lifetime of backlight unit 1 50000 70000 hours
Note 1 The lifetime of a LED, when operated at an ambient temperature of 25 ±2
○
C, is defined
as the time until the brightness reaches less than 50% of its original value. Note that
the LED lifetime will be shorter than specified in this document if the LED operates in a
higher ambient temperature.
For power supply below 7.5 V, see section 6.1.2.1.
9.2 Ambient light sensor
The ambient light sensor detects the ambient light intensity and adjusts the LCD brightness via application
software.
9.2.1 Characteristics
Symbol Parameter Min Max Unit
E
v
Illuminance
0.0 83k lx
9.3 Status LED
The Status LED is an RGB LED. The color is user-programmable and its brightness is adjustable.
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Proprietary Information
38
Document Number:
D-156-G-02-003