ETT 2144
BUILD-IN TOUCH TERMINAL
Page 14
12.02.2020
4.3
Display
Type
21.5” TN color display
Resolution
FullHD 1920 x 1080 pixels
Color depth
24-bit RGB
LCD mode
normally black
(1)
LCD Polarizer
transmissive
(2)
Pixel size
0.248 x 0.248 mm
Active surface
476.64 x 268.11
Backlighting
LED
Contrast ratio
typically 5000:1
Brightness
typically 300 cd/m²
Angle CR ≥ 10
left, right, top, bottom typically 89°
Life span
by compliance with the ambient conditions, the brightness of the display
sinks after 50,000 operating hours to 50 % of the original brightness
(1)
If no display data is available, the display remains black when the backlighting is on.
(2)
Display technology, with which display backlighting is used.
Due to the manufacturing process, individual pixel errors cannot be excluded to 100% and therefore do not
constitute a reduction in quality.
4.4
Control Unit
Touch panel
projective capacitive touch panel
Cleaning
see chapter 14.1.
A projective capacitive touch screen is built into the panel, with which 10-
finger input, Zoom and gesture functions can be implemented. Data can be
input using fingers, a project capacitive touch pen as well as with thin gloves.
The device must always be grounded to ensure stable function of the touch
screen. The touch function may still have to be individually adapted to the
respective environmental conditions.
