IEI Technology iSignager LCD 26, User Manual, Page: 49 / 73

iSignager LCD Series
Page 37
A.1 Auto-Dimming Configurations
The iSignager LCD Series features an auto-dimming LCD that can automatically adjust
the backlight brightness according to the ambient light. If the auto-dimming function is
turned on, the backlight turns brighter when the ambient illuminance is high. The backlight
dims automatically when the ambient illuminance level is low.
The SI unit of illuminance is “lux.” Lux measures the intensity of light. Table B-1 lists the
illuminance (LUX measurement) of everyday light sources.
Light Source
Brightness (LUX)
Night without moonlight <10
Night with moonlight <100
Office desk lighting 500~1000
Overcast day
1000~2000
Sunny day 10,000
Direct sunlight 100,000
Table A-1: LUX Measurement of Everyday Light Source
A.1.1 Default Settings
The auto-dimming default settings of the iSignager LCD Series industrial monitor is shown
in Figure A-1 below. When the sensor detects the ambient illuminance as 2000 LUX or
above, the iSignager LCD Series adjusts the LCD brightness to 100%.