This article provide more information about the ambient light sensor on the 63-Series monitors
Intelligent Brightness Control and Color Sensor Functionality
This IDS Display includes a light and color sensor that can adjust the brightness of the screen and the color of the display to meet the ambient light and color levels. Details of the functionality can be found below in the Section 9, Appendix.
The light sensor can be used to wake the monitor from sleep mode. This will happen when there is a change in the amount of light from very dim (<50 lux)="lux)" to="to" bright="bright" (="(">200 lux). To enable this feature, ensure that the power saving mode for the monitor is disabled.
The above information can also be found in the 63-Series User Manual
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