Does anyone know how the backlight current of the Radxa Display 8/10 FHD?

#1

I have a 10.1-inch mipi screen and adapt it to rock5c.

In order to prevent the screen backlight from burning out, I need to know the correct operating current.

Unfortunately, I don’t see the backlight current in the specs

The current can be calculated from R199~R204 on page 17 of the Schematic, but I am not sure and want to verify it.

Does anyone know? Thanks

#2

I received a reply from Radxa Technology. The backlight current is 180MA and the maximum is 200MA.

Solution 1 is to replace the current limiting resistor on the Rock5C according to the schematic diagram, 2 is to modify the brightness-levels in the dts