Intel J2 650 system manual LCD Brightness Control Mode / Auto Mode, Auto Mode Setting screen

LCD Brightness Control Mode / Auto Mode

Another unique feature of the 650 is the LCD Brightness Control Auto Mode. In some situations a system may be located in an environment that is bright during the day and darkened at night. It would be impractical to have to change the brightness manually, so in most cases the system would just be left set to full brightness all the time.

With the LCD Brightness Control Auto Mode the system can automatically adjust the LCD brightness. When the background brightness lowers to a per-set point the system will automatically lower the LCD brightness. As the ambient light of the room increases, the system will then automatically adjust up the LCD brightness. This is done with hardware so that no software driver needs to be added to the system.

At the top of the Auto Mode Setting setup screen there are two values displayed, Ambient Brightness and Control LCD Brightness. The Ambient Brightness displays the current brightness detected by the light sensor located in the top middle of the front bezel of the

650.This is the number of lux the sensor detects. (If you cover the sensor you can see the value change after a few seconds.) The Control LCD Brightness is the level that the auto control currently has set the LCD backlight brightness, this value ranges from 0-7 with 7 being the brightest.

Auto Mode Setting screen

650 System Manual (Draft)	40
Version 0.4 August 20, 2008