Hello,
Since i suffer from eye strain lately i've been trying to reduce the brightness of my monitor and also use a analog voltage instead of usual PWM of the monitors backlight driver. Inside the monitor the power supply was essentialy working as a LED driver and providing constant current rather than constant voltage to the backlight, so it was pointless to try to reduce the voltage/current from there as it would just increase the voltage and eventually turn off. So after reading the documentation of the panel i succeeded in turning the backlight(which is essentially a LED strip) on by using a step up variable voltage converter circuit board based on the XL6009 (one of those you find on ebay or aliexpress) attached to a 12v 5A AC DC power supply.
So i'm now able to dim the brightness to the level i want, but since the backlight now is being fed by a different source than the monitor, the two are no longer synced together, when the monitor goes on standby for example, the backlight keeps on. I'm mostly concerned that i may damage the panel by this arrangement, is it safe to run the monitor in this way?
thanks

 

So i'm now able to dim the brightness to the level i want, but since the backlight now is being fed by a different source than the monitor, the two are no longer synced together, when the monitor goes on standby for example, the backlight keeps on. I'm mostly concerned that i may damage the panel by this arrangement, is it safe to run the monitor in this way?

Why didn't you just use the monitor controls to adjust the brightness?

 

Why didn't you just use the monitor controls to adjust the brightness?

Hi,
Because it was still too bright, and it works with PWM.

 

Neat idea. Wouldnt mind doing mine too.